Nothing, and so they do. Dell will sell you an XPS 13 with Ubuntu installed. Lenovo will let you select Ubuntu or fedora in some models. System76 and Tuxedo will sell you a bunch of laptops only with Linux. Starlabs sells Linux laptops. KDE sells a laptop. Purism sells Linux laptops.
You could check out Hyperspace D6. It is a rules light reimagining of the old West End Games Star Wars D6 system. You wouldn’t have to use the Star Wars setting for it.
Without accurate polling with statistically significant sample sizes it’s hard to tell what the whole of the unions members think of the situation. Do you have some sources for this statement?
Although a nice article, it misses one major problem. There will never be another ownership structure like the Green Bay Packers. NFL rules now forbid it.
There are Nvidia drivers and steam in the nonfree repo (it’s a one command to get access to it), they are easy to install. I haven’t tried any gaming but don’t see why it wouldn’t be just as good as any other distro.