Mostly one at a time, but it depends.

Typically I play Marvel Rivals with my friend group, as it is one of the few multiplayer games these days that supports at least 5 people on a team (we already tried League, Paladins, etc and got tired of that real quick).

On my own, I sometimes feel like playing a retro game, so I have been playing Legend of Dragoon, but recently my save file got corrupted somehow so I haven’t restarted. Instead I switched to playing a less retro game, Need for Speed Carbon. Its been maybe 10 years since I played it last, so it has been interesting dealing with the horrendous rubberbanding and random crashing on PC. I also like to play Goddess of Victory NIKKE as a mobile game whenever I have down time but am away from home.

But I don’t think it is atypical to really focus on playing one game at a time. I’d say that would actually be quite unusual and likely only done by people who have a job playing multiple games per day (a not so good reviewer, streamer, etc).