Unable to run legacy Nextcloud client on MacOS Catalina 10.15.7

[sambilanet]

You might check this discussion:

macOS client 3.10.1 not on Catalina?

I just got offered an update for the macOS client 3.10.1. Before I was on 3.10. all working fine on my 2013 iMac running Catalina (macOS 10.15.7). After the update installation was complete, a popup window said it can not run on my system. why was I offered the update then in the first place? and how can I revert to my previous macOS client version? thanks for your help! [Bildschirmfoto 2023-10-26 um 14.46.40]