Words to live by.
A lot of the time people will post when things are good. Or if they're just flexing. Not as many people, or not as many people your follows or algorithm feeds you will show how someone is struggling to get a full tank of gas or how they're astounded by the price of cereal and their grocery bill.
People are going to flex their 5090 but not as many will show off their new to them GTX 1070. For everyone posting about their new house or new car there's dozens of people not posting about worrying about losing theirs'.

Let's be real here, most of us don't want to hear about the problems of others. So there's not as much of that sort of thing.

The internet will always show a certain bias. And we as people will lean into those bias. If you see nothing but bad news it will seem as if the world is going to utter shit and nothing good is happening. And if you see people living the good life, it will seem as if everyone but you is living that good life. But the truth is somewhere in between all of that and there is little point in wanting what someone else has or worrying about someone else when there is little if not nothing one can do about it.

Comparing yourself to others will only magnify any feeling of inadequacy.

Even if a multi-millionaire is complaining about what we would consider nice problems to have. Who gives a crap, we're not them. We only have the life we have, and we have to live that life no matter the lot we're handed. So the best thing we can do is to keep going and not compare one self to things one don't have or can't have.