Well, I have never tried before, and I also currently do not have any linux PC (nor do I feel like making a virtual machine), so it will be an untested version (Well, the others don't get much testing either).
But I could have a look at what UE5 offers by default. Is there anything I should know ?
Having a linux port would be nice~
though in terms of what to know
im not too familiar with specifics of unreal engine
but so long as you avoid using certain librarys that are anti linux, or avoid using your own launcher/installer, then the game can be set up to be forced to be linux compatible via steam compatibility.
using your own launcher or installer makes forced compatibility a little harder.