I have a license for all my Windows copies (W10Pro), but I used a separate drive for PopOS. There was no EFI partition for PopOS, even though I prepared one during setup to copy over the EFI files to do a dual boot. I did that, but it did not work as expected. Still, I have a reliable dual-boot machine and I successfully decrypted my Windows drives so I can see all my Windows files from Linux (my most important stuff!). I have other separate drives that contain all my games and software and movies and shows and stuff (NAS). It sees everything in those just fine.