You have no idea, what you are talking about. And it’s starting to become to cringe to keep going, you’re either a troll or clueless.
Aur is not supported by Arch Linux. It’s a community repository that has build scripts yes, but you have either one download the build scripts and use pacman to install them, two use a pacman wrapper like yaurt to fetch them and install them for you using guess what pacman!
Just because the tool isn’t supported by the distro doesn’t matter in this case, because they solve the same issue!! You are installing packages from a repository that the community oversees. Your case for arch Linux was installing the latest version of an application.
Have you even pulled your head out of arch linux ass and looked att xbps? No, because I’m starting to doubt if you would understand it, and there are other distros that offer the same thing.