Our team has a bit of a problem with VS2019 debugging at the moment. We can't use it to work on Xamarin Android apps because if left idle for more than half a minute or so the app crashes and the debugger drops out. I'm in contact with their team but so far no-one seems to know why. The only clue we have is that it seems to have come in with preview 2 when apparently they switched to a different version of Mono.
Moving forward could be an issue for us because most of our code base is shared and we don't want to be using multiple versions of vs. So we risk being stuck forever more on VS2017. It's a shame because otherwise VS2019 is a reasonable improvement on VS2017.
Biting the hand that feeds IT
