So I have seen some alternatives for running retro games on the Steam Deck. Given the locked down nature of the Steam Deck. Read only status of root distro, etc.
Most of those options just mean installing what you need as a FlatPak, but I wondered what was stopping you having an entire Retro / Emulator Linux Distro on the SD Card and chrooting to that.
The only real experience I have had with chroot is when using Arch and playing around with Linux from Scratch, so I am not the most experienced here and wondering if somone else though this was do able? 