Hmm, maybe there could be a way to give you the default “not logged in” feeds but then still handle other actions as your user. A setting for “use default feeds rather than my user’s” or something to that effect.
Or maybe something more like an aggregator for your different email accounts in your client? You could have two accounts: one on your server and one somewhere big (eg, lemmy.world). Then you could see their combined feed, and have a switcher for which account you’re performing actions from.