Well it's been about 7 months since I had my 2019 rear window leak repaired. It was a painful process and I am very hesitant to put it in a high pressure wash, but no leaks YET. It's been in the rain 2 or 3 times, a quarter car wash with the high pressure wand 4 or 5 times as well as 1 high pressure automated (no touch) wash. Nothing...
I took it to a new dealer the other day for some software updates etc and asked how many they repaired. The guy wasn't shy, he said they were doing several a week and had a wait time around a month - three months on some of theirs. He said the key was learning how to apply the new gasket for the spoiler \ light. He said they really didn't replace many of the sliding windows. I'm sorry so many are going through this still but eventually they get it right. Don't hold your breath on them doing anything for you as far as compensation, I tried.
Smitty