I wasn't able to find one. Which, if anyone saw my shitpost, is the real reason I installed it on my crapbook. I found out that the installer is pretty great, it just worked out of the box (at least on that computer, my gaming machine has an Nvidia graphics card...), and that GMOME isn't really for me.
Seeing your post I was actually worried because next week I wanted to install Bazzite on my laptop. For me the download worked fine though, 3-4 MB/s, its the bazzite Asus nvidia image. So it seems more of a problem with your internet connection somehow, more specific to wherever they store downloads.
Are you downloading with a download manager that could retry connecting when it fails?
Yes. Admittedly I don't have time to test if it really boots. I wanted to do that some time end of next week when I got a day off to take care of stuff.