And I'm the first to agree with that, I shot 35mm film and scan it myself. But not to the extent of jpeg compression artefacts and ultra low resolution, just look at that [0], you can barely distinguish anything besides blurry blobs of colors (it's displayed even smaller on the actual IG feed). I hate pixel peeping, but imho the only way that pic would look decent is on a 4" display.
Photogs adapt to the medium. [1] provides a good insight into how Instagram's (initial) square-only format and low resolution are creative constraints themselves. I practice mostly street and photojournalism with some portraits (and also shoot, develop, and scan my own film) and story has always triumphed quality, and Instagram's limits are plenty.
[0] https://scontent-frx5-1.cdninstagram.com/vp/5390bf9a135306a5...