Downgrading android 12 to 11 on a samsung galaxy s10e and installing /e/

As i said, i only experienced combination firmware for relatively old devices : Samsung Galaxy s4 and s5,
as i remember, but not sure, you may have to select something like “apply-pit” in Odin

But there are plenty of “How To” articles on the web dedicated to combination firmware

This one is about “normal firmware”
Revert Samsung Device to stock ROM on Windows PC