I haven't seen any posts about this here yet, the Oasis Driver for Windows Mixed Reality headsets added Linux support two weeks ago.

As I also got waitlisted for the Steam Frame, I have directed my enthusiasm there instead and now I have my HP Reverb G2 working again on Fedora 44. I still have to polish some small issues, but overall it works very well, even better than it did on Windows 10 before.

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The Oasis driver is very well known on Windows, it makes WMR headsets like the HP Reverb G2 work again, after Mixed Reality has been removed from recent versions of Windows. Arguably, it works even better than it ever did before "officially".

Now Oasis is available on Linux as well, even though some features are not quite working with this initial release (like pairing with the internal Bluetooth receivers of the headsets).

It's based on Ignition, a project that makes Windows-only SteamVR drivers work on Linux: https://github.com/BnuuySolutions/Ignition