While that is true, what you where trying to do was change the system with the way you installed Battle.net. Bazzite i sreally all about Steam and you then add flatpaks on top, since that’s all handled in your home folder.
But I’m glad you found out the solution with the home folder yourself. :)
Firefox disables some 3d acceleration stuff on Linux, where it’s enabled by default on Windows.
So look through your
about:configabout:support for any acceleration stuff that’s disabled. You might be able to enable them.