Can anyone recommend me a good casual-competitive FPS?

Can anyone recommend me a good casual-competitive FPS?

Overwatch was one of my all-time favorite games, but I just don't like OW2. I tried, it's just not the vibe anymore for me. I tried a couple other hero shooters, like Team Fortress 2, which I couldn't really get into. I've been thinking back to when I was last really into a shooter, and it was probably the original Modern Warfare 2 or Black Ops 2. Before that was Halo 3. I did also like Advanced Warfare when that came out.

These days, all of the popular modern shooters seem to be battle royals, which are fine (I liked Apex a lot for a while), but it's not really what I'm looking for. Beyond that, they're often F2P but loaded with microtransactions and shit. I am just so sick of that pricing model, I just want to pretend like it doesn't exist. lol I'm fine buying a game outright, but if there's a bunch of DLC or in-game currency of any kind, I'm out.

I'm also not looking for something like CS where everyone you play with is god-tier and is doing trick shots, cause that's frustrating.

So I guess I'm looking for a classic COD/Battlefield-ish FPS with the modern touches (like leaning around corners, etc.), that's either paid or free but does not paywall any content. It can be newer or older as long as it's not hard to find matches online. I'm also not super picky about art direction, but it'd be cool if it had good graphics.

Aaaand the icing on the cake: if it can run on Linux (natively or via proton), you get infinite bonus points. It's not a total deal-breaker if I have to switch to my Windows partition, but I do prefer Linux.

I know that's a tall order. Is there anything good in 2023 that would check most of these boxes?

#PCGaming