Do you think your age and life (work) experience did that for you? I have noticed myself feeling considerably differently towards different games too. Games I used to enjoy (like Starcraft) back in the days, I enjoy a lot less as an older guy now and having worked for almost 2 decades. It takes a lot of mental effort to keep up and do well (macro-ing and managing my econ, also micro-ing my army, etc.). Whereas if I play some Fortnite with friends (as a 40 year-old...) it's just pretty relaxing overall and I still enjoy gaming that way.