Exported images degrade when uploaded
Hey all,
I've recently upgraded to a Canon 90D from a bridge camera and started shooting in RAW.
I happily edited an image and exported it but when I go to upload it anywhere or move it to my phone it really degrades and I don't understand why. I know the original image isn't stunningly sharp as I'm still getting used to the settings on the new camera, but I don't understand what is happening. I've tried exported as a DNG then saving it through Photoshop as a PNG, JPEG or TIF but the same keeps happening.

I even compared it with two unedited versions of the same photo - the DNG degraded when uploaded but the JPEG version maintained quality (second image) - what am I doing wrong?

