This is the reason why I never click the hyperlinks on LinkedIn (or anywhere else, including my email, also including hyperlinks allowing me to unsubscribe from services etc.) while in my main browser. Always sending them to incognito browser. If it requires me to be logged in then I just shrug my shoulders and not view it again. That's because I (as somebody who is not an expert in security) can't tell what those long hyperlinks are meant to do or if I can trust the target website.