Simon's Puzzles is what i use when I'm trying to reduce my own doom scrolling.
Luanti (a very nice free Minecraft clone) is also great for a few minutes (...or hours) here and there.
Edit:
What the hey, here's a few more!
Burger Party - Like that pizza game, but burgers
Breakout 71 - Breakout as a Rogue-lite
Endless Sky - Space Trader Simulator
Gridle (Crosswords-Like Wordle)
Mindustry - Mobile Factorio-like
Pixel Dungeon - Rogue revisited and constantly updated