Just a suitable cloth as advised in the owner’s manual…
Touchscreen
Clean the touchscreen using a soft lint-free cloth specifically designed to clean monitors and displays. Do not use cleaners (such as a glass cleaner) or alcohol-based gel products (such as hand sanitizer) and do not use a wet wipe or a dry statically-charged cloth (such as a recently washed microfiber). To wipe the touchscreen without activating buttons and changing settings, you can enable Screen Clean Mode. Touch Controls > Display > Screen Clean Mode. The display darkens to make it easy to see dust and smudges. To exit Screen Clean Mode, press and hold HOLD TO EXIT.