It appears to only apply to my server, but it’s strange I can change stuff in a community that I don’t own. I spun up a PieFed server, federated with lemmy shitpost, and I can supposedly change members and mods.
The description seems to only apply to my instance, but I still find it weird you can view and “change” members.
Oh dont take me at my word though. Staff have accounts on @piefed.social if you want someone with actual knowledge and not from someone who has been to the codeberg once.