My friend has had a model 3 since September. He has had to wait several times. It doesn't help that three out of the six chargers have been broken for several months.As I've said before, in nearly 3 years of ownership and visiting a myriad of SCs, I've ever had to wait. Not once.
And c'mon, you should know that even though Tesla will cut you to 80% when it's a high use charging array, you can manually raise it back to whatever you like.