for example, this image:

gets reconstructed to this:

uh oh.
If you use a Pixel phone and you've posted screenshots on cohost: you should check them to make sure nothing's getting leaked from them. cohost is one of the only social media sites that doesn't recompress your images, which means it's possible for something to have gotten leaked via this bug. Same deal with Discord.
hm i dunno if my phone is too ancient or what, but i can't reproduce this with either my existing screenshots or ones i just took right now
seems bad though