Right… Splitgate and splitgate 2 are lies. What you experienced are probably mostly if not all bit matches instead of playing with and against other players. But that is besides the question.

Realistically there have been no actual good games in that niche in recent years (less than 10 years old) and the old ones are either dead unless you like botmatches or have a tiny community that is really REALLY good and will wipe the floor with you.

Anyhow Quake 3 (good luck) Tribes 2 (good luck) Unreal tournament 2004 (good luck obtaining legally, also good luck) Halo (LoL last decent one was reach on 360) There’s more but those are even more niche than the big ones already listed.