I feel your pain, as I run Linux on my only laptop and use my (Android) phone for TR. I’ve contemplated picking up a secondhand tablet so I don’t have to squint; maybe that could be an option for you?
This has been the song of OSS enthusiasts for decades. I’ll keep using it because I’m a dev and it makes everything easier, but I’m not optimistic about Linux on the desktop for the general public.
No, porting a native Android app to desktop Linux is not straightforward. I think the regular desktop app is built on Electron, so if they were going to support Linux, it’d be much easier to start there. Nate talked about Linux compatibility a bit on Reddit a couple months ago:
It’s our device layer that makes it hard. That would have to be natively written on Linux.
It’s also something to test and code for forever if we did it. Linux doesn’t have the market share to justify us doing that.
On the other hand, another random redditor apparently got everything working with Virtualbox on Debian (I imagine VMWare would also work but who knows):
I do all my TR workouts on my laptop with Debian Buster. I even use the BlueGiga BLED112 dongle they suggest. Just spin up Windows 10 in VirtualBox and install the TR software. If you’re using a dongle you can export it to the VM if you install the VirtualBox Extension Pack.