I need some help here from the experts.

Some background below, but here's the question:

Can I run KDE and Gnome on bazzite? How can I install and manage multiple images? I feel silly asking this, but I'm just not finding the correct documentation.

Background:

I have been running KDE desktop Bazzite on my PC for a while now, and I'm loving the robust and easy system (not to mention the ease of gaming). But I have found that one program just doesn't work correctly, and I had a game (Stellaris) freeze my system several times.

I ended up installing EndeavorOS on an older PC to experiment, and found out that the program in question (openAndroidInstaller) requires a Gnome portal to access my hardware. (Long live the Terminal!) Now I suspect that perhaps the game freeze wouldn't happen with Gnome either. So I want to have both on bazzite, but can't figure it out.