I recently switched over to Linux elementary OS. It's such a game-changer, it's hard for me to turn back. I even sacrificed my Windows programs to run alternate software as a single-boot system. Virtualization is a pain and an Affinity port would be VERY welcome. At least have the software run as an AppImage (it runs universally on all distros - more info here). Rizom UV, a 3d texture mapper, has now Linux support when it has always been primarily Windows software and it uses AppImage. For Affinity, this would be a good option to reduce overhead.
Linux FTW - it's the future!