I'm pretty sure most Linux desktop environments these days have decent support for UI scaling. Last time I tried it worked well if your dpi was close to an inte

I'm pretty sure most Linux desktop environments these days have decent support for UI scaling. Last time I tried it worked well if your dpi was close to an integer multiple of 96. And if external boot works well with the M1 Macs, a thunderbolt enclosure with an m.2 drive would be pretty darn fast.