Having Mint and Windows on the same machine will end up with a completely fucked boot drive if you’re not super careful.
When I installed Mint on an NVME I installed specifically for it, either it or windows decided that the boot info should be placed on my SSD with Windows and not on the same NVME as mint (as I wanted, as windows was literally just a dead data drive to me at this point that happened to be bootable), so when it came time for the wipe and swap of drives I suddenly couldn’t boot anything
Minor headache to get boot repair rolling and get everything set up properly to the partition I’d made on the NVME, but the googling I did to fix this taught me that Mint and Windows Dual-Boot is a question of “when and what will fuck Up” rather than “if it will”
My advice would be to just read carefully what’s happening when you do drive shit and to keep a working boot USB for mint (should do this anyway, but keep it updated) for at least as long as you’re dual booting. Boot repair WILL save you, its very easy to use, and remember the words emblazoned on that amazing book: Don’t Panic