I’m not here to argue & you’ve got some good points. I am defending no one; this isn’t a situation where I’m in the “hail corporate” camp.
The minute Plex started taking money back in 2012, anyone who thought Plex was still creating this product+service out of the goodness of their hearts has been missing the point. The writing has been on the wall for 10+ years.
I have experienced the same login bug on the Mlem app as well. One of my devices stayed logged in and is working perfectly; my other device logged me out of lemmy.ml and I have not been able to log back in on that device.