Opening up a link from a huge site like facebook, reddit, insta, youtube, quora etc is always safe. Always, they sanitize and encrypt info before sending you over.
No virus can infect your computer just by opening a link, especially if you are using a modern browser ( chrome, duck duck go, mozilla, edge, opera, tor ). They won't download anything without confirming with you first, or enable any plugin without confirming with you. And not a single virus infects you just by visiting a webpage, there has to be some kind of receiving on your end.
Although you should never open links to an external site on a sketchy website where you have entered any personal information.
For e.g :
You should probably never go from sketchywebsite.com to anothersketchywebsite.com .
it's usually safe to go from sketchywebsite.com to sketchywebsite.com/abou-us
GO GET THAT ONLY FAN!