I want to share pictures to my family and friends through my Plex.
I don’t want them to create a Plex account cause they ain’t gonna use it.
There’s an existing feature suggestion thread discussing that option for photo libraries.
I suggest you comment/vote in that thread in order to avoid distracting/cannibalizing votes.
I’ll therefore close this thread as a duplicate.
Plex have previously rejected that idea for video content as it’ll establish plain file sharing on an unlimited scale.
2022 clean-up: duplicate