This is territory I am somewhat unsure of......however, the efi partition on my pc is FAT (32-bit-version0
click on menu and type in disks ......that should show the hard drive etc.....it will show the parttiions......and what type they are etc
In setting my pc up.....I simply chose my 250 GB M.2 drive.....and ticked the box for wiping that drive and installing Linux Mint 21
......and just allowed the installer to do tha hard work of deciding how to set up partitions etc.
It works. Beautifully
View attachment 14131
Feel like a Clean Install ?