I gone through a lot of hosting service providers and unfortunetly cannot find a single one that can be used without running nonfree programs, all of them require loading bulky obfuscated JavaScript apps.
I know of Codeberg Pages for static sites for example, but it is not suitable for any business or professional use.
What exactly do you mean? Typically you go to a website, register the domain, setup payment and then setup the nameserver. No need to install anything on your end.
Same with hosting. You sign up, setup payment, order a machine (root or virtual) and then you get SSH credentials and are good to go.