Team fortress 2? I still play it at least once or twice a week. Valve hasn’t given it a major update since 2016-2017 but it’s still fun. Bots aren’t as big of a problem as they used to be, you just need to kick them when they join. New players can’t communicate at all though (including calling for medic) which sucks since it’s pretty integral.
There’s supposedly a new community update this summer but I don’t have high hopes for it with valves current track record.
If you wanna play and your computer isn’t very good you can try using master config, it allows you to optimise the game better so you can hopefully play with decent performance