when you download an image from the web these days, instead of a PNG or a JPEG, you get one of these new formats which is 8% more efficient, not compatible with any "pre-covid software" and has a name which sounds like

JEG
WebUP
High Information Format Format
webLICC
AppleLuppy
j-eggings Layer 6
ProRes ProxyGold (Grain Profile)
PrBufEncapDCT
h.26vorbis
h.26NeRFscene
Radiance XML
EXIFnoimage
rayJSON
WebX 2000
base64staticBlogSVG.meta
bitplaneConwayAnim