there's a idiotic program called pngquant.
it reduces png file size by a lossy compression.
if you want lossy, goto jpg or webp
The point of png is not lossy at all. To humans, u can't discern. To machine's eye, yes. So, pngquant taints the picture. Faaked up the png name. The author, is, i'd deem a selfish faak. To create such a thing. Because, to those unknow, they'd think, omg, this great new tech, crushes png so much , far better than competitiors. But, the guy actually cheated, and faaked up the good png name and tech. Now, WHO, is the pngquant author? A faakhead. The pngquant author, is like many other faakhead in software, who, did things to promote himself and harmed the whole tech. Examples include: C, C++, unix, perl, npm. And emacs dash.
Friends, if down the road, your kids thinks that png files are full of fuzzy edges just like, jpg, you have to thank to that faakhead