4e, and Pathfinder 2e, both took this path. Feats for race, class, skills, and general (and probably more, it's been a minute). What I remembered was that the vast majority of those feats were boring. +2 to a certain action with a skill. +1 to a certain attack roll. Use a racial or class feature an additional time. Rare and powerful were the feats that actually gave you something interesting to do with your PC beyond "I'm a wee bit better at x".
Say what you will about 5e feats, most of them at least feel like they give you new abilities rather than improve combat and skill math...