Hello,
Welcome to Microsoft Q&A!
First open visual studio update
menu , and then you can select previous version in Update channel
.
Download and reinstall , this should be able to roll back the Xamarin.iOS version .
If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.