I’ve found an apparently new image for RaspiOS Bullseye here: Google Drive, directly in Linux Folder . If I understand the notation, it’s fitting for my Banana Pi M2 Zero . So I’ve written it to an SD card and booted it up - that worked.
Long story short; apart from booting up and allowing login (pi/bananapi), not much seems to be working. Wifi (and SSH) should be enabled - I’ve put the SSH and wpa_supplicant.conf onto the boot disk, which worked with previous versions of Raspbian (from 2020).
At startup there’s (very) shortly a message saying to press any key to stop the autoselection of boot options, but I guess the OTG USB keyboard is not active yet. So I can’t choose. The target environment is graphical.target , so the GUI should start. Instead I get a login (at this time, the keyboard works fine, btw).
The google drive seems to be official, but I wonder if the image is maybe work in progress?
Sorry if this was discussed already - I haven’t found anything useful on it, but maybe my search skill sucks…