From this Vox article:

Instagram has a way of flattening lived experiences so that my best years look exactly like my bad ones, and that everything seems pretty good, all the time, for everyone. This, obviously, is not how life works for most people, and ever since Instagram has existed experts have debated what seeing an infinite scroll of other people’s happy moments is doing to our brains.

Then it goes on:

[…] Even when you know it isn’t real, that social media is a highlight reel of people’s lives and you shouldn’t compare yourself to anyone else, that it’s a trap and it will only make you feel bad about your life, which is overall probably a perfectly fine one, Instagram still has real, material consequences. Being good at Instagram is a ticket to more likes, more followers, more tiny hits of dopamine and ultimately more fame and money; a platform to launch a creative project and sell it, to be able to live the life we’re supposed to want.

The whole article is worth a read.