I've found that after a time, the resource usage of Joplin is too high, my computer cannot handle it.
Back to the drawing board for me, I think I'll be going back to my old method of just using a spreadsheet to manually make an index of all the files and contents of each.
I do think Joplin is an excellent app, and for free I am definitely not complaining, but even with 16 gb ram, I just don't have a good enough computer to handle it.
I'm just posting for the sake of giving feedback in case it tips the scales in favor of a new direction of inquiry, programming.
My Joplin is jam-packed with plugins, and I'm seeing well less than 300MB of RAM usage on my main laptop. I even have an instance running on a 14yo dual-core laptop with no performance issues.
Among others, I use Joplin on an Intel Atom tablet with just 2GB of RAM. I wouldn't be surprised if these were the lowest specs around here (except for from maybe some older Android phones). Honestly, apart from a slow startup, it actually runs fine when it comes to general responsivity, switching notebooks and notes, etc. I do not use any plugins on that device though.