If you read everything on the page I posted, they said the ALT key on a windows keyboard is the same as the OPTION key on a mac.
(and probably everyone elses keyboard.

BUT.. back to putting Linux Mint's new version 22 into your Minny Mouse.

You don't burn anything. CD's are now as obsolete as a Floppy Disk.

You pick up a cheap Flash Drive at Walmart and download the Linux OS from their web site for free and install it yourself.

I can show you the correct link to download.
You first download it into your download folder of the computer you are going to use it in.
After you have it downloaded into your download folder you put it onto that flash Drive.
They call it Making A Bootable OS.

Instructions for Mac looked a little different.
BUT..

On most (normal ) computers you install it by inserting that loaded Flash Drive with the computer you are putting it into turned off.
You turn on the computer and the instant you see the screen starting to light up you start tapping the F12 key.
That will allow it to show the Flash Drive and its Instruction Page.

You will have a choice of installing it along side what ever OS you have in there or wiping out everything and installing the new OS.
I always choose wiping out all of what ever is in there.