I would also be really interested in Roon Arc on Linux, and or native pipewire support.
I am also sometimes in the office, and want to listen to my musik over my notebook.
Currently I am getting it working on my Linux Desktop (start writing a guide in the forum, but by exident send it before it was finished. So it may take some time to post it again.)
I am still in my Roon test period, but like it. The lack of Linux Support is the only big complain I have currently, even when I understand, that there are more people on mac and windows. But for me (no windows or MacBook in the house), this is really sad.