Since you refer to realism, I guess this refers to my comment.And I get that but realism isnt in the lexicon of most games unless you play sims like Arma 3 or MS flight simulator or something that explicity models itself after real things.
In Cyberpunk if you root yourself to the spot and stick your head out, its not particularly surprising to me that you get domed.
And its fine if you want to play like that because it is intuitive to seek cover when under heavy fire. You just have to accept that by doing this, you can be pinned down. By sitting behind cover you give up vision, mobility and your offense.
One of the best defensive tools you have is to make enemies dead, since dead dudes deal zero damage.
You give up your ability to take better terrain when it suits you. Instead you let enemies dictate where they can engage you. Even if you play assault rifles, you want it to be the other way around. You want to control when and where you engage them.
A lot of the time in games, defense doesnt mean giving up control of everything happening around you. It doesnt mean sitting still and holding block. That usually invites pressure onto you.
You dont need to play rushdown, but I guess the video shows how much gunfire you can soak even with no cover to protect you.
To be clear, when I refer to realism, I do speak about real life scenarios in modern warfare, not the World War 1 trench warfare. Like I wrote, bottleneck, retreat, repeat. Assault weapons work the best when player keeps moving, as in real life and is even more important as excluding the Heist, there's no partner to cover V.
There are couple of scenarios in game where battle with assault weapons can be initiated from very good position as player can eliminate flanks very quickly and hostile NPC's has disadvantage for getting V's position. That also reflects to real life also in aspect how to move from there taking advantage of environment to get to enemy.
Reflexes / Assault skill progression rewards, Perks and that different assault weapons have practical differences, not unlike their IRL counterparts all build up to very consistent set, that is perfectly valid to solve combat scenarios in game. I did that on my second playthrough where I went with character with lot's of focus to Reflexes.
I have appreciated many posts you have made as they tend to be very informative and helpful. So I don't mean to be a dick exactly but please appreciate:
I'm no the one who is asking help here.
You are not any kind of authority of how to play the game. For all that reflects to practical gameplay, CDPR knew what they were doing here.
Also comparison to ARMA and such is outlandish in context of this game. CP 2077 doesn't need to go to such lengths, what they have is practically working, unless player tries to play WW 1 trench warfare scenarios. Well, in IRL that was abandoned for very good reasons.
If issue OP is having is related to assault weapons, it's possible that OP tries to turtle in scenarios, then solution would be to keep moving and study how to take advantage of environment.