How to verify from OS level in Linux based systems if secure boot is enabled
Well there is a neat tool called
bootctl
If you open the terminal with for example CTRL+alt+t or alt+f2 “xterm”
And install it on debian based systems with this
If you are on a UEFI system with systemd it always preinstalled… sorry, my fault. I always try to expand my knowledge :3
And then type
bootctl status
or as sudo, it will show it to you, ;) you're welcome
Cheers