I believe that it's essential to know these necessary information about URLs and hyperlinks.
Attackers use hidden links or shortened links to hide their real links. Don't click on link from strangers is the best. People can argue that if you never click on links send to you by a stranger you can sometimes miss good opportunities or miss chances to help the others. To be safe, it is the best. If you decide to open stranger's email, it is time to be careful with any link in emails.
Back in the past, I sent email to professor who I don't know. I only know him after I read his book in which I see his email. I contacted him by email, and ask some question, and a pdf file of this book. He is kindful and generous so he sent me the doc file and he claims to give me his book updates each semester. It is life. Just be kind and you will get help and can help others.
It's quite a healthy practice with verifying of links before clicking it. I hope no one gets phished by it.
As said, I don't verify link if it is from strangers. I ignore them. Verify strange links means risk.