FreeBSD does not use secure boot so I guess you can safely choose "Restore Secure Boot to Factory Settings".
The option "Enforce Secure Boot" is greyed out, I found this information in the docs of a Honeywell RT10W tablet:
The option "Enforce Secure Boot" is greyed out, I found this information in the docs of a Honeywell RT10W tablet:
QuoteEnabling "Enforce Secure Boot" will not work, as the option is greyed out. This is due to missing credentials. To get default credentials inserted, the option "Restore Secure Boot to Factory Settings" needs to be enabled. A following reboot is required. Afterwards "Enforce Secure Boot" is available.https://sps-support.honeywell.com/s/article/RT10W-In-the-BIOS-Enforce-Secure-Boot-is-grayed-out
"