yes gif2webp are unusable
i tried to talk with some comicreader-coder
(but is hard to fight for this)
i try to convert a really huge collection to this format
to push this.. i have test something
best sizes have 7zip in STORE mode!!
all compression modes have made the "archive" bigger
but explorer have no good support thumbnailing/preview 7zipped webps
but good support for directly webp (via wic-codec)
so i wait for the updated WIC-Codec for Windows
and an binarytool for mux/demux single webps