If you want to reheat potatoes that are already cooked on a pan or fried, they may mash or dry, especially if they are fried. Better to avoid this practice for taste reasons, even if we can possibly heat them in the pan.
How to do?
To reheat potatoes boiled in water or steam, fry them in the pan: this is the best way to get the right result to taste, and you can also heat them in the microwave. cutting them into pieces so that reheating is easier and more uniform.
True, a person can have two conflicting attitudes.
All of the above i think.