I think that there is a somewhat decent chance that there will be an ARM Steam Deck Mini at some point. The Steam Client will probably be released for ARM distributions. I think for the foreseeable future there will be a considerable overlap of topics between thee devices.

I think should there be a flood of posts regarding hardware tinkering of the other devices (people sharing faceplate STLs for Machine or addons for the Frame’s expansion port), they could be directed to dedicated communities but for now IMO it’s fine to be inclusive.