It's not, at least in my book. Like gfngfn256 explained it's not a good idea to execute scripts without understanding what they are doings since in case a bad actor took over the download source you could have uninvited visitors on your system
So I consider helper scripts actually not very helpful for newbies at all : They abstract the complexity behind the setup away which means that the users assume that they can get away with not doing much system administration. But at some point (some sooner, some later) they run into problems and can't resolve them since they don't know where to start. If they would have done the setup manually or by understanding the how the script works and changing it to their wishes they at least would have an idea where to start.
At least if the goal is to get some services running. For learning shell programming and system administration they are a great ressource: Read a script, try to understand how it works. Tweak it, look whether your changes work like you expected. Rince, repeat. But this doesn't seem what most people use them for.
Back to homarr: The documentation doesn't look too hard for me, it should be easy to follow it if you have a Linux VM with docker or podman installed:
https://homarr.dev/docs/getting-started/installation
But if you don't want to do much system administration (which I totally understand) you might be better of with a NAS OS with docker support.