I had this issue on my media pc which I wanted to be booting into mint, but grub would throw it to windows on reboots which made it super unreliable. Finally found how to edit grub (really wish there was a simple ui for it but it must be pain, I guess). Hope it helps.

Who are these fucking complete garbage people who can conceive of a world where there are elves, dwarves, Qunari and darkspawn, but trans people are a bridge too far?