MarsSeed [1] filed a deletion request for neovim-vim-compat [2]: This shim package is an inferior, less compatible duplicate of AUR/neovim-drop-in [a], which has existed for much longer than this one.
[a]: https://aur.archlinux.org/packages/neovim-drop-in [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/neovim-vim-compat/