>>720094491 (OP)
80s, 90s, 2000s all had both good and bad games, with plenty of in between.
2010s is harder to pin down. Early 2010s had plenty of good, but also had some bad and in the middle. I don't things actually shifted to having less good (but still very good) until late 2010s and 2020s. Largely the in the middle and bad increased in this period, but this isn't some, "it's because the late 2010s or 2020s are bad" sort of thing, so much as business practices just changed a lot in general. When people talk about a particular time period being better, I suppose you can say it's, "they were young then," but I look at it more like, "the things they like were probably in greater supply in that period" or "business practices were more to their taste in those periods" the late 2010s and 2020s are flush with some really nasty business practices. It doesn't make the years bad, but I can certainly see how if you like games you might dislike some 2010s and 2020s practices.
That said, video games in these periods have another half, which is the indie scene, which I feel are largely barren of the negative practices afflicting the AAA scene. And, for that matter, there's some really interesting AA stuff going on too that I feel compliments the good stuff in the indie scene and might spell a better future for the AAA scene. Some of the AA games released in the past few years have been absolutely amazing.
TL;DR :: There's always good and bad no matter what time you live in. I'm more concerned with modern censorship threats, of course, than I am past censorship threats because those threats have already been settled - but the issues right now are still undecided.