>>715755237 (OP)Reaction time is not a defining factor in most games unless you have super dog shit reactions. Like unironic old man
reactions at 800ms or worse.
Most "unreactable" attacks are considered at 300ms or faster. Games that actually utilize these types of attacks tend to be fighting games. You're expected to predict these attacks, not "react" to them. They're meant as a tool.
As for action games, especially ones with RPG elements like Monster Hunter and Soulslikes, you can literally just overpower mechanics like these with your build. Not a single end game Monster Hunter fight is a reaction test unless you uronically rely on iframes as your main source of defense. I.E. you're playing a pure DPS build with a crutch weapon like Longsword.