Deleting Mac Pro startup security (Firmware) password in "Normal Mode"

I am sorry, but I could not find an answer to this though I searched for a number of hours over two days and even used Google’s and Grok’s AI, to no avail.

This is not a question, but a reply to a closed topic to which I sure others will still want an answer. I KNOW my firmware password, and I wanted to delete it, but the system won't let me use even a wired mouse and keyboard to type it in. By the way, using Option to switch to a different boot drive DOES allow me to type in the firmware password, go figure. Here is what to do if you have the same issue:

In normal mode, open terminal and type:

sudo firmwarepasswd -delete

Then enter your firmware password and it reports that the password has been deleted.

I was then able to get into Recovery Mode without the password, but curiously when I ran

Sudo firmwarepasswd -check,

I got a message that it was an unknown command.

I restarted in normal mode, ran Sudo firmwarepasswd -check, and it reported:

Password Enabled: No

[Re-Titled by Moderator]

Original Title: What to do if your Mac won't let you enter your startup security (firmware) password to enter Recovery Mode