You don't need legendary hacks to be vastly overpowered as a Netrunner in this game, because the problem isn't the damage itself - but the inability of the enemies to effectively respond when being attacked at range and the player is hidden (or moves away).
I was overpowered against "Very High" targets on "Very Hard" difficulty with not a single Rare Hack (I had one, but didn't use it) - around level 6 or 7. The combination of Breach Protocol damage resistance lowering - and the +100% damage to unaware enemies meant I could utterly obliterate Very High threat targets at range, with zero challenge or issue. Enemy Netrunners rarely do anything - and when they do, you simply move out of range and you're safe.
The scaling itself is awfully simplistic - but the core issue is that they implemented a bunch of tools for the player - that the enemies can't do anything about.
Same goes for ranged attacks through walls. If you stand beneath or above the place you're shooting at - the enemies won't be able to find you. They simply go back to non-alerted state after a minute or so.
So, not only are you outlevelling 90% of the content way, way before the level cap - meaning you're dealing more damage to them than you would ever need, they also neglected to put into place ceilings for crit chance and crit damage - meaning you will be absurdly above the damage potential that would make anything a remote challenge.
But, again, that's just icing on this cake of zero balance effort.
The core issue is the AI and the slow responses to attacks.
Furthermore, if you invest even a little into body/health - and melee skills, you can simply run fast and slaughter everything in sight - because they're TOO SLOW to respond. This is made worse by slow-mo stuff and armor cyberware - where you're literally immortal.
Then we have the no-cooldown no-limit health injectors - that you can spam and indefinitely stay at 100% health. What's even worse than that, is that you will have dozens or even hundreds of those at low levels, if you pick them up.
Everything about balance in this game is a complete mess.
That's unfortunate enough, but it doesn't exactly help that people who have no idea what the game is actually like - who focus on the story exclusively and don't actually think about combat balance are constantly saying that "it's fine, I like it as it is".
That will not help them and it will NOT help game balance. If you enjoy zero challenge and you don't like to put any effort into developing or optimizing your character - that's completely cool. Games are for everyone.
But that's what Normal mode is for.
Very Hard should be...... Very hard.
Right now, all difficulties are utterly trivial after level 5 - if you put any points into damage skills or use ANY weapon effectively.
It's a travesty.