I was thinking about this today, since I'm close to finishing the game I'm currently playing. I think this year will end up being 4 games for me, though they're JRPGs so it takes me a while longer (and I usually try to 100% games I like)
Finish can also just mean play until you're satisfied too. So maybe a better question is how many games do you usually play each year?
As far as online games go, I'm also playing Splatoon 3 and Overwatch 2
I play a lot of games with endless replayability, and I kinda just rotate between them: Rimworld, Darkest Dungeon, X-COM (both new and old school), Hades, Invisible Inc., Slay The Spire, Paradox games (although I've kinda soured on them bc they're not very satisfying for the time commitment imo), FTL, Oxygen Not Included, Don't Starve, etc. I never really know when I'm for sure finished with them.