Game's pretty good, It runs almost the same as on windows as long as you are using proton experimental (as of march 2025). You don't really have many options for servers but here are a couple I revisit myself.

[EU] Rusticated.com - Creative : Great to practice building tho it is a bit buggy and linux is not supported officially so it may stop working anytime soon (works as of march 2025).
IP: client.connect 64.40.9.30:28035

Deadlock n Chill : It is the highest pop server for linux as of now, wipes monthly and it does die down a bit as the month starts to end, you can only raid on the last week of wipe, there are PVE players and there are changes to the UI so it can feel too modded. The admin is also pretty set on the rules and how the server should be ran. IP: client.connect play.deadlock.com

Raidados.top | 2x | Vanilla+ : It is a relatively new server but it can get pretty competitive on wipeday. It is the closest server to vanilla that we have on linux. Gathering is 2x but sulfur, components and diesel gathering is 1x, excav is vanilla too. There are no UI modifications so the server does feel pretty vanilla and not modded at all. The server is pretty community driven and the owner listens to feedback pretty closely. IP: client.connect raidados.top

Also rust is a very time consuming game and pretty much on every server you will read gamer words, please use the Mute Player function by clicking on the player that you want to mute with the chat open and mute them.

You can also completely disable global chat if you just want to chill.