I just finished outer wilds and its expansion. I don't know how new or old you are as a gamer but I'd call that pretty recent, and it's probably in the top three best games I've ever played. It's likely to stick in my mind for years.

So, empirically based on the last game I played, I don't think games are getting worse. It might be that you're playing bad games, or it might be that you're in a bad place.

Sometimes I quite gaming for months or years at a time too. It's okay to be tired of the medium for a bit.