@muzak @graphit0 @personalizedrefriger
Thanks for your responses. Sorry for the delay, but I was out of town at a family wedding and returned today.
The UI does not freeze, but the fetched items count stops counting. Encryption is enabled and notes have no problem syncing in other devices. I've run the sync over a dozen times. Once it went over 5000 items but then it stopped. Often it stops when the count is far less. Once, I let it sit for ~3 hours without the count increasing, although the sync icon continued to spin (as it always does). It does not recreate all of my notebooks and does not download all notes.
The only notebook that did sync is called "Conflicts (attachments)," which exists on my other devices. It's there because I'm trying to figure out what to do with the entries. See Massive Conflicts
I haven't posted the logs due to warning that was provided.
I appreciate your advice and assistance. I love Joplin and this community but I'm getting close to my limit on the amount of frustration and time I'm willing to endure to make this work. Thanks again for your time. It's a valuable commodity and I'm grateful for the help.