Let me rephrase. I never looked back at React as the default option for any greenfield project.

I still have to deal with React codebases, and every time I do I dread it.

Life is a never ending series of forking roads not taken, you take some and you leave others unexplored, there's an near infinite amount of things to learn and we only have so much time to learn them. It's not feasible to worry about it.

I presume most people learn to deal with that when they're like, twelve, or something. Otherwise you just live with constant regret and FOMO.