Technically he or she has access to the AUR, but through website.^^ On a more serious note, one could install https://github.com/89luca89/distrobox and manager multiple package managers. Because each package manager is in a container, they do not interfere. I never used it, but imagine it like Flatpak, but actually using the package manager from the distribution (including access to AUR). And specific applications and programs can be “exported” to install them like a normal application, so you can access it with a single appname.
Technically he or she has access to the AUR, but through website.^^ On a more serious note, one could install https://github.com/89luca89/distrobox and manager multiple package managers. Because each package manager is in a container, they do not interfere. I never used it, but imagine it like Flatpak, but actually using the package manager from the distribution (including access to AUR). And specific applications and programs can be “exported” to install them like a normal application, so you can access it with a single appname.