

The opposite of self-hosted would be managed service.
You run it yourself at your own location however you want it
Vs
Someone runs it for you at their location. However the want it
VPS is someone loans you a VM at their location that you run yourself however you want to.
It’s still relevant to self-hosted because you still have to do all the work, you were just using their network, power, air conditioning, hardware and fire suppression. You’re still in the hook for installs and patches, configuration, and software issues.
Quite a few model years of Synology were stricken with a network transceiver issue where they would just stop talking randomly.
I have two WD-EX4’s and the six bay Synology, and none of them have the kind of uptime I get out of my unraid.
If you want something rock solid I would probably scratch build a box with truenas