How access MuseScore older versions in Flatpak

It appears the only version available for download/install via Flatpak is 4.0.1 which is new development and current. I’m looking for MuseScore 3.6.2 for Flatpak download. Where would I find that version? Thx.

It is possible to put the MuseScore 3.6.2 AppImage in a Flatpak package. I tried it and fh.frank.old.musescore starts. But I don’t know the MuseScore 3.6.2 app. It is necessary to test the Flatpak package.