I too think you should remove windows. But if you don't want to, take a clonezilla image of your hard drive now. Store it somewhere else of course. You then can always recover if this scheme gets weird.

Its the first thing I do when I get a new laptop. Then wipe windows. Then install Linux. If I have hardware issues I can simply restore windows for warranty.

In any case, I would pick one of those two Linux to be a primary. You don't want to get rid of mint or make it a VM. Ok third option: distrobox it.