I could live with a slow regeneration... but of course it would not really be... optimum to have it. I guess the biggest upside to it would be a reduction in reloads due to deaths. But yeah, regeneration is a bit of a cringy thing to have in games like this.
But I know how bad it can be to be put out of action for prolonged periods of time... especially in the pnp rpg's I am used to playing. Since my experience with pnp RPG'ing is mostly with Swedish pnp rpg's, which in general are very unforgiving when it comes to taking damage.
Especially one Swedish game is VERY unforgiving, one called "Eon" (only exists in Swedish, no English version)... where something as "useless" as a regular dagger can with skill and some luck be extreamly deadly... heck even a random stone you picked up could potentually kill someone. You could even if your really lucky punch through plate armour with that dagger. Becase that games system is based around rolling so called "infinite D6's". What that means is that for every 6 you roll, you pick up the dice which rolled a 6 (leave the other on the table as they are), and add another D6 to your hand, and then roll these two dices, and you keep doing that untill you have no more 6's rolled. If your damage is 3D6, and all 3 dices rolled a 6, then you would pick up all 3 dices, and add 3 more dices, which would result in you rolling 6 dices, and if any of those where a 6 again it would be picked up and the same amount of new dices would be added, etc. In this way, a weapon like a dagger could take down any opponent no matter how well protected it was from armour.
On top of that, the injury system in the game is... probably one of the most realistic injury systems I have ever played... extreamly detailed... not to mention HIGHLY leathal. Roll high enough on the damage dices and you cause "critical injuries" (for every 10 points of damage that goes through armour, you do one critical injury on the location you hit, on just the arm you have the shoulder, upper arm, elbow, lower arm, wrist, and hand, as specific hit locations... on your head you have face, neck, and skull... the lower abdomen hit location does include critical hits which happend to your genitalia... like the ones called long or deep wound/lesion). Even just 1 single critical hit, in the right (or wrong... depending on point of view) hit location, and the right critical hit (each hit location have 3 different critical hit's tables with 10 possible outcomes in each, where each of those 3 tables represent 1 kind of injury type, so cutting (slashing or chopping can also work as name here), crushing and stabbing types of damage) as well... can be pretty much certain death. Bleeding in the game is absolutly deadly... I have had more characters die, or have cause more enemies to die, from bleeding... then any other type of damage in the game (like from pure Trauma for example)... an arterial bleeding is bad... hitting the heart is of course worse... the brain critical hit is not a very good one either.
Especially weapons that cause stabbing type of damage has a higher chance of causing bleeding. Cutting/chopping is the a general kind of damage, where it can cause a more varied types of injuries (anything from bleeding, to cutting things of, etc). Where as Crushing damage tend to have a higher chance to break bone and such, or cause one of the absolutly worse critical injuries you can get.. internal bleeding, because the only way to fix that is either by natural healing (which is to slow for you to survive it), or have a surgeon at hand that can operate... which is a problem since this is basicly a medieval setting, and surgeons are pretty few, if not highly expensive to pay for their service. And even if you did survive these injuries... you could still die if you got unlucky and your wounds got infected as well. The different types of damage in the game that you can get is "Trauma", "Pain", "Bloodloss speed" (how fast you lose blood), and "Bloodloss" (how much blood you have lost). The only ones of these that do not kill you is Pain... well... technicly Bloodloss speed as well... but yeah since that is connected to bloodloss it's self... Pain is the only one you can not die from. XD
As for recovery... your looking at several days maybe a week or so for minor amounts of Trauma (this injury type is the one that takes the longest to heal up)... but have a semi-serious amount of injury and your looking at several weeks at the very least, if not a few months. Even a very successful outcome to a combat could still result in some of the characters being out for weeks. And all of that is with the asumtion that your actually in bed resting, with someone skilled looking after you. Because natural healing is halved if your up and about doing things, like adventuring or what ever. And even if you ignore bedrest, and continued to play anyway, you would be seriously hampered... since for every X amount of Trauma, Pain, Bloodloss, or Exhaustion (which you get from doing actions in combat, or walking long distances, or doing other extranious things), you will have additional D6's added to the amount of D6's you need to roll to try and succedde with certain/most/all skills. The base difficulty is 3D6's... where you need to roll equal or lower then your skill level (you can max buy 15 from the start, but that's highly expensive if you try to get it in more then 2-3 skills, you would be seriously hampered in other skills then)... if you reached the first threshhold for let's say just Trauma and Pain, your normal difficulty of 3D6's would now suddenly be 5D6's... The average role of 5 infinite D6's in Eon is 18.75... and that's not a bet your going to be willing to take that you will succedde with... going into combat like that and your screwed.
So yeah... I am very used to highly deadly combat in pnp rpg's, due to the pnp rpg's I play... but having something like this for a computer game is not... well... fun in the long run. Sure it could be cool to actually have injuries that mattered in the game, where you could be out for a long time, or you could get permanent injuries due to it... but I only really seeing that work for certain types of games. Like RimWorld (their latest Alpha include actual injuries that can become permanent if your doctor does not fix it in time... or a leg or arm being shot of compleatly... losing eyes... ears.. noses... fingers... toes... etc)... and the upcoming "Mordheim: City of the Damned" game will also include permanebt injuries (like losing part of a leg so you need to use a pegleg etc)... but that works for those kinds of game.
For a game like what 2077 will probably be... it does not work that well I think. It would be realistic of course... but sometimes realism is just not the way to go. And unfortunatly I think that 2077 will have to maybe go away from realism in this case... it's sad, but unless they come up with some really smart way to deal with it, they are going to have to include some kind of healing mechanics that speeds it up considerably.
