I have the Safari links bug and it is extremely irritating. You can't click on a link anywhere (even in some apps) - nothing happens. Long clicking on a link in Safari/Mail completely freezes the app. You can search for something on Google, but you can't go to any of the result pages.
Apparently it is particularly prevalent on phones with Booking.com installed. As I understand it, Apple allow app developers to update a global list of URL's on the phone that should open in their apps rather than the browser. Booking.com loads 2.4mb of URL's into the global URL repository which totally borks iOS any time you click on a link. But it could also be other apps that have loaded URL's.
Not really the app developers problem (although probably not what was intended by the feature) - more a weakness in the iOS implementation. Even though Booking.com has already fixed the issue and reduced their links, installing the update doesn't fix the problem.
In fact, removing Booking.com, and even wiping and restoring the phone from a backup, or downgrading to 9.2.1 don't seem to resolve the issue once it has appeared.
They need to fix this quickly, because it makes the phone useless for browsing/mail, etc.