Game installed on TWO drives rather than one

I have a question.

My copy of FH1 is somehow installed on both my external hard drive AND my Xbox’s internal storage, and idk which version my saved data is stored to. If I was to delete it from the internal storage, would I lose my data?

I can remember transferring/moving the game and add-ons from my internal storage to my Game Drive, but for some reason it stayed on my internal storage as well, and this is the only game that my Xbox has done this for.