As title says. Obviously I could setup different virtual machines or spend the time and install all the DEs in one VM if it is even possible without breaking the OS. I'm wondering if there is an already made iso or something that installs all the maintained DEs for trying.
BlendOS. You can easily switch between DEs without any conflicts or dependency hell, as they're all containerised (and would therefore perform better than running them inside a full-fledged VM).
I just spent an hour trying to get this installed in a Proxmox VM. No dice. After install, it just boots to the GRUB rescue prompt. Oh well, seems like a cool idea.