MarsSeed [1] filed a deletion request for pyside2-git [2]: Unneeded non-VCS package for Python 3.9. Old duplicate of extra repo's pyside2, but not a drop-in replacement for it. Not useful to keep.
[1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/pyside2-git/
