I gave it an actual try and it's fine for intermediate users, but leaves much to desire out of the box for a regular person. No printer support out of the box... It's disabled by default, gotta install cups and enable it manually through systemctl if you skip that in the installer. And of course, most people would. Bluetooth is also turned off by default (Systemctl again) Samba 's turned off by default (Systemctl and package installation again, as well as some extra steps in the terminal) and it of course didn't come with a base Samba config file, which is required.
Manjaro's got a reputation and people love to hate it... But it doesn't have those issues and aside from the cases where you would absolutely need it on the most user-friendly distros, you don't need to ever touch the terminal on it. Pamac works really well, shows up as "Install and update programs" in the launch menus, supports native packages, AUR, Flatpak and Snap... and looks good to people who don't get angry at the sight of a CSD window. I use the AUR fairly frequently and have encountered essentially zero cases where a package wouldn't build on my system because of some Manjaro-specific issue in the past five years.
Edit: And for the record, I would recommend PopOS for anyone looking to use a stable Linux computer with up to date drivers and no nonsense. Arch based distros are good for tinkerers and I'd only recommend them to people who like fixing things and want full control.
I'm confused. Have you tried what is suggested in the arch wiki? Controllers are easier to get working on Linux than in Windows in my experience... And I'm on Manjaro. The Xbox 360 controller was considered the default for such a long time that in many cases, other controllers' buttons had to be remapped externally to match the xbox 360's in order to play games. It should be completely plug and play if your adapter and controller both work.