Newly formated, Password-Protected Disk Will not Mount after I forgot password

I reformatted a new external hard drive, and made it password protected -- APFS (encrypted) -- If I recall correctly. I did this using a 2017 Macbook Air with an up-to-date OS.

Then I forgot the password. I exceeded the maximum number of tries. Now the external HD does not mount.

I also traded in the 2017, for a new 2021 M1 Pro, running the same OS.

The disk is a Toshiba DTCA40 - 4 TB purchased in August, 2022. It has not been mistreated in any way.

Is there a connection between forgetting a password,

and the disk not mounting?

and or upgrading the computer hardware?

How can I make the disk discoverable on my laptop,

and how can I reset the password without erasing the contents of the disk?

Inquiring minds want to know.