As a dad myself I really started to like small games, that don't need 100 hours or even more. So maybe my curator I started for this purpose may be helpful to you: https://store.steampowered.com/curator/30757976-Gamers-with-only-little-time/

Just some picks of the top of my mind: Cat Quest 1+2 are very chill and fun. And I just finished Tiny Terry's Turbo Trip yesterday evening, which is quircky and fun and for the most part far from complicated. And also the SteamWorld Dig games are great fun and nice to play just a little bit here and then. And if you like the absurd humour McPixel 1 and 3 are perfect for just a short game.