Comments by "belstar" (@belstar1128) on "67 Bytes - The Smallest Possible PNG (And How It Works)" video.

i have very limited knowledge but a few years ago i tried to check what the smallest image files that i could make were and i was surprised that png crated a smaller image than jpeg .but on high res pics jpeg is more efficient. but it also looks worse. but i noticed png files use less storage when there are less color gradients. so for something like a flag with 3 colors png is more efficient than jpg and there is no reason to use jpg but in most real life pictures you want to use jpg since there is too much going on ( assuming you want low storage ) .but png is better for things like comics and other simple art without too many gradients .
1