Humans simply are not wired for social media and the Internet. Seeing every single person you know posting themselves beautiful and dressed up doing the coolest things 24/7 will make anyone feel ugly and like they aren’t doing anything with their lives. It takes real focused effort to remember that people (generally) only post when they are doing something special and what you don’t see are the days or weeks between posts that show they live the same boring life you live.

I've never seen a friend post on social media about something and then felt sad. I've instead thought "That looks awesome! Good for them! I can't wait to do something like that too, I'm inspired!"

I think when we lost in person social gatherings as the primary method of meeting new people

This is something only chronically online people say. Most people form almost all of their relationships offline. This is still extremely true of platonic relationships. Online dating has increased in popularity, but mostly this is among people with niche tastes or in remote locations, where finding a match is more difficult due to the rarity of finding potential partners in real life. Tons of people still date primarily via their social circle or community gatherings, and most people use a mix of all their options.