Second time I searched extensively I finally found some "hits" on how to disable secure boot. AIUI I don't need to worry about this being enabled if I'm using 'Other OS' in the Asus bios. Sorry can't find the exact version on my TUF B450M plus gaming mobo. It was 1 point something.
I believe I can enable/disable secure boot but again, it's not relevant if using Other OS, correct?
Thank you!
Mac