The washing machine having WiFi helps when I'm upstairs so I know to go take it out and put it in the dryer. This is my first tumble dryer after 17 years of renting, I think this one is fancy enough!
Just guessing but I'd be surprised if it didn't play a sound when the drying cycle is complete. I dont know what your gaff is like for sound travel but might be enough to hear from upstairs...
It really isn’t needed if they’re in the house.
Only got WiFi as they’re in the garage so wanted get notifications of completions etc.