Can you give an example of this (with the real link to compare)? Tracking info can be added to the URL but should not break the page.
There are extensions and addons that remove the tracking data for you, you might want to give them a try.
I'm not able to find an immediate example but usually happens when sharing links via a format that doesn't explicitly format them as links, such as SMS
As a rule I don't install any add-ons or extensions. Because a trusted extension today can become malicious tomorrow as has happened so many times.
Yes, but we are talking about why the average person just sends a screenshot. Insanely long links filled with tracking data that may or may not result in a clickable link on whatever app-browser-OS they are using is the reason. There is always a workaround for people that A: understand the problem, and B: care enough to find and use the workaround. But since the average person is not likely to pick this topic to use their limited time, energy and knowledge on, they go with the easy consistent option.
Whenever there is a problem and the two options are 1. have all individuals change their behavior or 2. fix the system so the better option is the easiest, the answer is always 2.