I live on the same property as my parents in a separate house with separate internet connections. Their house is less than 30 feet from me. We share the same physical address. Yet according to Netflix, this would not count as family sharing because of our separate internet lines.
The workflow of Darktable gets me confused compared to Lightroom/Photoshop's Adobe Camera Raw tool; there are so many options and features that it can be overwhelming. Capture ONE from my experience delivers superior RAW decoding vs. Adobe Camera Raw, but I still use ACR.
You mean like the OP's comment saying, "Ask yourself, are you trying to use the damn printer or you want a possibly educational rabbit hole to go down." Why are you being a contrarian when you're agreeing with them?
It's transcoding that is troublesome on the RPi and can be worsened as the resolution/image quality increases; Direct Play(stream) via Plex may alleviate that pain point, but your stream-playing device needs to be able to decode it directly.
My Xbox One S for example can decode most streams with Direct Play using the Plex app (or all using VLC).
Here[0] is a recent update from a Plex Team member about their knowledge of and intention to fix these issues, no timeline though.