Now, it’s useless. But don’t take my word for it... Just google anything similar to: “Adobe Mix app import pixelated” You’ll see for yourself. It’s an issue that’s been going on for well over a year, and they won’t address it. The “answers” they’ll point you to in the “Adobe Community” aren’t answers at all.
It’s a consistent problem, and one that’s big enough to render any work done on Photoshop Mix to be completely unusable, and unrepairable. Every single one of their “work-arounds” has been proven to be completely ineffective, and again, you can see all of this for yourself, just by googling the pixelation problem with Mix app import. Until they get this fixed, It’s nothing but a nightmare. If you need an overlay or blending app for ANY sort of work-related, or professional reason, then do yourself a favor and download ANYTHING but AdobePhotoshopMix.