Do you have the Nik Collection in an earlier version of Elements? If so, you can copy the Google folder from C:\Program Files\Adobe\Photoshop Elements [Your version number]\Plug-Ins to the C:\Program Files\Adobe\Photoshop Elements 2022\Plug-Ins folder.
If not, do you have the installer file? It should be named something like nikcollection-full-1.2.11.exe. Simply double-click on it and it should install. If not, you may have to copy the Google folder from wherever it is installed on your desktop.
If you don't have the installer, you can find it here.