Beaten so far:
Luigi's Mansion 3
Jamestown + (could probably put this in the beaten category but there is one extra mission I still didn't do)
TemTem (just got it yesterday)
CrossCode (really cool and extremely well-polished indie game I found on Steam, still in Early Access)
I play a lot of games, so I'm probably missing quite a few. Also, some of these were right around the new year and may have, in fact, happened last year. Also, some of my "currently playing" I may never play again, but I haven't yet consciously determined that I'm done with them. I also tried out a couple of the free EGS games like Farming Simulator 19, Braid, and a couple others which I can recall playing this year but not their names. Briefly checked out Path of Exile to see what new things are in the game since I last played (and since Tencent took over).