If you are using a hosting provider, you are by definition not "self hosting", since you are in fact, not hosting (unless you happen to own the hosting provider company).
I actually self-host tools, and that involves having (in my case) a couple of rackmount servers in my spare bathroom, and an rPi5 with a 4x m.2 hat on my desk. Hell, even just running stuff on your own desktop/laptop is self-hosting.
But PaaS and SaaS are just as not-self-hosted as IaaS is. It's literally cloud hosting.
Yup - as they say, "the cloud" is just some else's computer.
It's not so hard to genuinely self-host. You just need a reasonable ISP who is willing to open your connection, and to be sensible about securing your systems.
Ba-humbug! Hosting at home on a server purchased from a vendor like Dell? That's not true self hosting either. A true Scotsman self hosts on hardware he soldered up himself. /s
I actually self-host tools, and that involves having (in my case) a couple of rackmount servers in my spare bathroom, and an rPi5 with a 4x m.2 hat on my desk. Hell, even just running stuff on your own desktop/laptop is self-hosting.
But PaaS and SaaS are just as not-self-hosted as IaaS is. It's literally cloud hosting.