I have a handful of "low focus" games for podcasts, audiobooks, youtube video essays, etc.
Vampire Survivors, or almost any "bullet heaven" type game works well. Old School Runescape also has a ton of ways to skill grind with minimal attention needed. Turn based RPGs with minimal story are great too.
Played through a handful of Pokemon randomizers and romhacks while binging King of the Hill.
But the king for me for a while was Elite: Dangerous. Hop in my cargo ship, use spansh road to riches to generate a trading route, and binge stuff while flying fron planet to planet in supercruise.
I need to try audiobooks. I generally struggle with auditory input, but that's mostly if I'm trying to dedicate all my focus to it. Games + audiobooks might be my jam
Binding of isaac and many rougelikes fit pretty well, a lot have vert good music but I like taking on a book more(also book recommendations would be the golgatha series for magical wild west, johannes cabal series that's the adventures of a decent but unfriendly necromancer, john dies at the end is a cosmic horror comedy series, space team is stupid fun scifi, oh and the black company follows a fantasy mercenary group who are sine of the very best but also too threatening to not be betrayed by the employers that's mostly told from the perspective of their medic