First of all, thank you for the post, Anachronaut!
Some months ago I tried to upgrade my clover 4937 to a newer version, but it broke the installation (I use Clonezilla before trying any upgrade, saved me a lot of headaches...). I was using Clover Configurator to upgrade Clover and it was showing a message, before starting the upgrade, that my system, which is pretty standard (a bit old...), was not compatible. Image attached.
Then I found your article. I followed it precisely but kept getting the same message. I used the Clover pkg in the link above instead of using Clover Configurator. Except for the version, I understand that there is not much difference between the methods.
Yesterday I decided to accept the risk and install it, ignoring the compatibility message. Clover installed and, after trying to boot, I get a reboot before getting to the login screen. And I never got to the configuration screens you show. (I am Brazilian, and the image below is in Portuguese - The message says that the package is incompatible with my Mac OS version - it is 10.15.2 and asks me to abort or to continue).
Any help on that?
Thanks!