Hi, I tested the below hardware now. Kernel 5.10.0-3 with device_tree from the same kernel (5.10.0-3):
armhfCard arm64Card Rpi2b Success NotPossible32bitCpu Rpi3b Success Success*1) Rpi3b+ Success Success*1) *1) Digital audio not working (HDMI) Success means Gpu (Kde) and analog audio work! I do not have the hardware for Rpi4b. Best Regards, Evald