When I said 3rd party I meant non mojang jars, not hosting providors

Not when compared to the third party servers. Not only do they run better but they give the option of using plugins or mods to further improve performance and enhance gameplay.

Weekly full backup, nightly incremental

If you want to learn more, then you will need to move away from casa. Casa is pretty much just a collection of custom docker images that play well together and with their interface. You could grab an old computer, install Linux, and do more but you would expend more time and effort.

I switched to just using Docker and nginx reverse proxy. It’s more setup initially but less overhead.

I could fork ClamAV and call it OysterAV then there would be a less maintained alternative