Your dryer will load the socket for far less time than a car charger and will probably not use 15A for the entire drying cycle.

It’s the long charge time that leads to heat buildup, not the max amp.

Where I am from standard outlets can deliver 16A but are not rated for more than 6A if the load is longer than 2 hours.

Here it's 15A and the charger itself actually tops out at 12A as is common. Perhaps that being common is how to avoid fires. I'm actually not sure now if that's a law or just best practice here.