Sounds like your average VPS offering though; that means, it's not physical hardware but virtualized. CI is still considered to be something that is allowed to take a while, since it's an async process etc.

Self-hosting is an option for sure, but an in-between one would be to run your own gitlab and set up your own runners. I actually found out it's pretty easy to configure a runner on your own device, but with the same process you can rent a server or VPS at higher specs than the default offering and make your builds faster.