Fuzzy and Pixelated Social Media Posts on Mobile
Hello, I have created some social posts in Photoshop, and then my collegue posted them on Instagram and Facebook using her phone. Once posted, the graphics look extremely fuzzy and pixelated on mobile, but look OK on desktop. This does not happen for every social post I make, just some of them. I've tried exporting the images differently, and there is no change. I would greatly appreciate any thoughts on the matter. See mobile screenshot below to view the fuzziness in all its glory, particularly around the text areas.

In case you want to view the original image before it's uploaded to IG, here it is exported at 2048 px x 2048 px. 
