Auto wipers have never been great, but since the last update I've had at least one or more dry-windshield wipes on almost every drive. It used to be that this would happen only when the car was facing into the sun, but now it seems to happen in all sorts of lighting conditions. This is happening on both my Model 3 and Model Y, and neither activated the auto-wipers in those conditions in the past.
I've installed S3XY buttons in both cars and have a button on the back of the left steering wheel spoke set for a long press to toggle the auto wipers on and off, a short press to increase speed, and a double press to reduce speed, which is marginally easier than using the voice command or touchscreen to do the same actions.