Scott GRUBE

I have a 2021 silverado 1500 ltz which is doing the same thing . It will shut off randomly and boot back up. Took it to dealer and they had it for two days and said they did a software update which was a 10 weeks ago. Well here we are again and it still does it randomly. Seems GM has had plenty of time to fix this problem from what I have been reading here this problem has been going on for a few years. I guess my question is why take it in to the dealer if know one knows what the problem is . Been a faithful Chevy buyer all my life , maybe be time to rethink that . $70,000 dollar truck should not be doing this . Still under warranty.