I’d like to put clothes in the washer in the morning and have it start an hour before I get home.

I actually use these though. It's a boon for someone with ADHD for a dryer that has adaptive drying (the drying time varies based on moisture content, so the estimate isn't perfect). I'll be plugging away at my computer and my phone tells me "hey it's time to take them out". It's even more valuable when you have a washer with alerts, since you can know exactly when to do the next load.

Some people have night rates for electricity so you could set your dryer to start at 3am and save yourself money.

You could get an estimated time for when the clothes are going to be dried. Often I have to switch on the dryer a second time as the clothes aren’t completely dry.

If the water collection tank is full in my dryer it essentially stops drying the clothes so if I could get an alert that the tank was full I could empty it or maybe alert someone in the house that it needs to be emptied.

Often if I’m washing clothes at night I don’t turn on the drier as some people have gone to bed, I normally leave the clothes in the drier. So if I could get an alert based on the weather the next morning if it makes sense to hang out the clothes before I go to work or is it going to rain and the drier will switch it on and be finished before I come home from work.