i will be very interested in ur experience with the mini especially with regard to mk3. i got my mini end of october and haven’t really experienced lots of the issues others had early on but still not happy with the amount of stringing it produces. it will be great to have someone to compare with especially as i am new to the 3d printer world and not sure what to expect. maybe my expectations were too high lol. i am sure there r some prusaslicer parameters that can help i have found a few but still not happy. at least it cleans up fairly easily.
I have a MK3S and get some stringing too. In my (somewhat limited) experience, it's more related to the print than the filament - lots of tall parts next to each other (individual pieces or parts of the same piece) will have stringing in between. There are some test prints and settings you can tweak to dial in your printer. However my advice is to purchase a heat gun and just hit the stringy prints with that after the print is complete. Total game changer!