For games, just use your package manager to install Steam, then install Proton from there. (IIRC it's automatic for just the standard release version.) Steam games should mostly just work without you needing to do anything. Other games, you want to use something like Heroic or Lutris (I recommend the former) to manage them and launch them with Proton without manually doing it all every time.

If you expand on what your issues were, I'm sure plenty of people would be happy to help. Again, it should be pretty trivial, so I'm not sure what went wrong.

I can understand being frustrated, but you have to understand that your particular experience is not the norm. I'd be pretty confident saying that less than 1% of people will back out of an install half way through it or have that much of an issue installing (unless it's Arch). So it's not something that really needs to be fixed before people can start using Linux.

I didn't even have that many problems setting up a dual boot with Windows in 2006 when I was a total newbie to Linux, and I had to figure out how partitioning and swap files worked.

Just ask for help in a respectful manner on your distros forum and someone will very likely be happy to assist you.