Linux Gaming

My go-tos are tf2 and tf2 - that is Team Fortress 2 and Titanfall 2. Both work great on Linux and have really dedicated communities. Titanfall 2 even has the Northstar client.

Older game but red orchestra 2 is a classic ww2 shooter with a decent online community. Matches are around the 20 - 30 minute mark.

I play a lot of Apex Legends. It works very well on Linux.

Splitgate

Xonotic is always a good one.

I play halo mcc and infinite and also recently started playing warframe thats more of an mmo shooter

Shatterline and Caliber

Both free to play, on Steam, and work using Proton.

Hunt Showdown runs on Linux with Proton and it has EAC

I play apex legends and sometimes overwatch. Csgo is also an option but i haven't played it yet

Krunker is nice for a quick match. You can play it directly from your browser or download it from steam

Battlebit Remastered works on Linux atm. They're switching to FaceIt which won't work, but there will still be servers running EAC. Shatterline and Splitgate are good options too.

Keep an eye on Xdefiant, it is unfortunately made by Ubisoft, but it's F2P and looks impressive so far. There's also rumors of a native linux port thanks to some job postings, but even if that doesn't happen it runs great with Wine/Proton.

Some EAC games support linux like halo. I played MCC and the performance was fine, but I found the game to be unstable when interacting with the menu/UI.

Why not just CS:GO? But I’m only saying this because I have no real recommendation tbh. For offline I can recommend Ravenfield. It’s really fun even though the native Linux version is kind of broken when using mods which is kinda the point of the game. Works fine using Proton though

hl2 Deathmatch

game is a crazy amount of fun

Not sure if you're fine with a paid game, but Halo: The Master Chief Collection recently got Linux support for multiplayer - though they have the Steam launch options reversed so you have to select EAC disabled at launch, in order for it to be enabled lol (thus allowing you to play online)

Additionally, Halo Infinite's multiplayer mode is free, and also works on Linux.

CS:GO, Halo MCC, Overwatch 2

though I don't know if OW2 counts as good anymore, certainly not a fan of the changes, but it still works on Linux

Insurgency Sandstorm is pretty good and CS:GO is always a classic go-to.

If you don't want to load up windows you can play one of the valve shooters and csgo

I'm still playing COD4: Modern Warfare. Works with Proton and does not require any Anti-Cheat on most servers. It's an old game but still good enough for a short firefight.

I like Combat Master, and it's free and native linux.

Bzflag

Jk