Open the SVG and have a look at what’s happening during boot.
journalctl -b will give you some more info too. If you’re using grub to boot (probably in /boot/grub/grub.cfg), you can change the loglevel and add the udev option to get a bunch more info. Helped me with a random issue recently. Here’s mine for an example:
Note that there isn’t a Linux version of the protondrive app. … I know! what the fuck right?
Secondly, I would just shove Linux Mint onto a USB and use that as a live distro with persistence for a while, just to get used to things. I’m not a fan of debian(/-based) or apt, but it works.
I’ve been using Arch for years and can’t pull myself away because everything just works. Whats the difference between arch and whatever the derivatives are? I don’t even know what distros to arch are the Ubuntu / mint to debian