I subscribed to this community with alts on the most populous instances:
- lemmy.world
- sh.itjust.works
- lemmy.ml
- beehaw.org
- discuss.tchncs.de
- reddthat
- lemmy.blahaj.zone
- lemmy.ca
So those at least should be covered, but it’s always good to see if people from different instances are correctly federated too
Commenting as per request both here an on matrix chat