As
@JT2002TJ more completely explains, yes, wiper performance. On my 2018 Model 3 there is a push button on the end of the left stalk that, when pushed quickly, initiates a single wipe. When held a ½ second or beyond, will activate the wipers and spray nozzles, which are attached to the wipers themselves. There is no other manual control. It works, just is nowhere near as useful as the other rain sensors and dedicated wiper stalks in other vehicles. You can use voice commands to set wipers to run at four different speeds, or on Auto. On my car, regardless of software version, these wipers run erratically both dry wiping, poor wiping in misty conditions, decent but not terrific wiping in all other rain, confusing at night, etc., etc. Worst auto wipers performance I've had in 30 years overall.
To add excitement AutoWipers is automatically enabled when enabling FSD, presumably to ensure the windshield is clear in front of the main front-facing camera for the FSD functionality. This "feature" varies from software version to version. As if you need yet another reason to save the money and skip the FSD purchase.