I honestly have no problem with people gaming or scrolling Facebook - but I guess it's all about the intention... if you're scrolling Facebook because you find it relaxing and want to keep up with your friends, then go for it. If you're chasing dopamine hits and uncritically falling for misinformation, then there is absolutely a better use of your time. Same with games, if you're using them to destress and unwind, totally cool, if you're enjoying an interactive art form, then that's awesome. If you're doing it because you don't know how else to spend your time, then that feels like a missed opportunity.

It's all about the intention I think, I personally want to feel that I'm progressing in skills or fitness every day so I don't feel like I've used my time wisely until I've gotten slightly better at something... whatever that might be.