MarsSeed [1] filed a deletion request for bamf-ubuntu-bzr [2]: Abandoned, broken package from 2018.
Also, there's no longer any difference between Ubuntu's bamf source and upstream's, used in repo bamf package. This old package still uses Python2, whereas upstream needs Python3. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/bamf-ubuntu-bzr/
