I believe once a post or comment is federated it will continue to stay even if the instance it came from is no longer in service. instances are not “streaming” the data to each other, they send copies and store it in their own dbs. So this comment right here will have a bunch copies out there on other instances.
I’ve been looking at this, we use Docker Desktop for local development on M1 Macs. Is there a reason to switch? Does it have a lower memory footprint?