Ugh, you just reminded me of just how sad I was when I logged into Steam over the weekend for the first time in a while and discovered how many games I lost to Catalina.

I have 118 games in my library, 17 of which are Windows-only. Only 25 of the remaining 101 MacOS-compatible games survived the 64-bit upgrade.

Edit: thinking about it a little more though, this has been the situation for many many months, but I only realized over the weekend how bad it was because I've moved almost all of my gaming to my Nintendo Switch. (I only happened to return to Steam because I wanted to play A Short Hike.)