I think this is part of the appeal of rogue like games such as Hades. Exploring large 3d environments isn't as rewarding when I can only play a half hour at once (while simultaneously attempting to get the baby to sleep). I'd much rather get straight to the core gameplay before I crawl into bed, exhausted.
I play Xonotic, a free software FPS that uses the Darkplaces engine.
If you're up for twitch shooting, play instagib.
If you want action, hop onto a Clan arena match (team Deathmatch but 1 life per round, and you start the map with everything).
OTOH if you're too tired to frag, hop on a Xonotic Defrag Server, where your only goal is to practice movements to finish a track on time. Xonotic has some very cool quake like movements, and there are almost always people on the Relaxed Running server (but they also have >1 hr puzzle/trick jump tracks).
It's so much fun, even just for the 20 minutes I can usually get before going to bed ;)
I do really appreciate Halo for finally going back to "everyone, regardless of level, starts with the exact same equipment and skills". That levels the playing field and I can still have fun (even if I'm not good) without playing a lot.