Mastodon's UI for groups is terrible. This community is indistinguishable from an account named "@Firefox" with thousands of followers unless you open its page and notice it says "Group" and understand what that means.

yes

thats on the platforms not the format

jpegxl should be the successor, granted - but that doesn't make webp any less good

Google is strong-arming it for unknown reasons.

lol. Yeah it’s a mystery.

Some CDNs like Akamai and Cloudflare have options to optimize images. We use the Akamai one where I work. It means our creative teams, customers, etc. don’t need to worry too much about whether an image is properly optimized when they upload it. Akamai will, behind the scenes optimize the quality, color palette, and image type (jpg, web, png, etc) and create a number of different versions of the images. Then when a client requests the image Akamai looks at the client device (mobile vs desktop, screen resolution, browser version, etc) and serves the copy of the image that’s best optimized for that device.

So even if the URL ends with .jpg you might be sent a .webp. If you use the browsers developer tool to inspect the response headers you’ll likely see the Content-Type header says it’s .webp as well.

Because the URL is lying, and the image is not a jpg.

Sure. And then use formats that are good enough that have broad support.

Attack the problem from both sides.

I mean Gwenview, GIMP and tons of other apps support it. I dont know an app that doesnt support it actually

(same developer for both addons)

After turning the word into a noun though, you'll need to know how to turn it back into an adjective. We use "-less" to turn the noun into an adjective.

I prefer PNG because it losslessnesslessly compresses raster images.

I prefer PNG because it uses a losslessnessless algorithm.

I prefer PNG because I love losslessnesslessness.