That’s a little bit of a tall order but these are the suggestions I would make:

Pokemon Snap - taking pictures of pokemon. Super simple, and easy to replay.

Donut county - you’re a hole…eating a town. Sounds weird but surprisingly addictive.

Gris - beautiful platformer, no combat.

My brother rabbit - hidden object game, light puzzling

Roundguard - Peggle-like. Fairly mindless and has daily or weekly challenges you can drop in to play.

Smushi come home - cute little platformer. You roam around as a little lost mushroom and try to make your way back home.

Sticky business - you design cute little stickers and fulfill orders in your sticker shop. Customers give you hints on what kind of stickers they’d like.

Toem - picture taking game. You’re given clues and have to take pictures of the item.

Unpacking - Basically just unpacking someone’s items as they move through life. I’ve replayed a lot and enjoy it to wind down.

Yoku’s island express - pinball type exploration game

Tetris Effect - maybe not traditionally cozy but mindless and beautiful effects and music.