FWIW, I just used the "advanced" installation, and while yes, it wasn't very stylish, it worked just fine. I wouldn't really worry about it much for right now.
I purposfully asked rustup not to modify my PATH envvar. At the end of the install I got this helpful reminder:
To get started you need Cargo's bin directory in your `PATH`
environment variable.
It would be even more helpful if it also reminded me what bin directory to add 