A long-simmering rant:
Okay, as a long-time "content creator" blogger I have to say it:
I hate, hate, hate all the new graphic file formats. I don't care if it's GIFV, WEBP or HEIC. They all need to die in a fire. Right now compatibility is non-existent, and merely reposting something I find online often involves downloading it—and if I can't convert it to something usable like JPG or GIF in-house—uploading it to a website to convert and then downloading the image file a second time. It's a pain in the fucking ass.
Or else… you could try and convince WordPress that they are lagging behind by still not providing support for file formats that are now widely supported by others.
Clue: tell them that even Safari on Mac – Holy Chr!st! EVEN SAFARI ! – supports (let's say) Webp since more than a year ago. Maybe that'll motivate them?
(ok, sorry… I'll just be leaving quietly now)
I knew you'd have something to say about this. ?