What's wrong with WebP? It's a modern format with smaller file sizes, and most software supports it. It's very commonly used online these days instead of the legacy formats.
I download memes to share them. Messenger does not like webp. It literally won't allow me to send the image. I then have to edit the image just so I can send it. Now I have two copies of the same meme.
Sync for Lemmy decided to absolutely destroy the quality of your image so I thought being unable to read it was the joke, but I still decided to spend what ended up being WAY too much time to figure it out from the few pixels available... and then I accidentally tapped on it and the normal readable version opened. This multilayered brain fart and subsequent realization humbled me in an odd way, feels weirdly good.
I wrote a TV guide app for Blackberry many years ago, and for the parts of the grid where the data had not yet downloaded, I drew (in code) a light checkerboard background like this. Got into a long-running argument with my company's UX guy over it because he said it was a visual element that implied transparency when there wasn't actually any transparency. So pointless - it wasn't an app for image manipulation in the first place. I gave the darker squares a light blue tint and he left me alone, and then Blackberry died a quick death anyway.
The moral of the story is one that I took to heart for all my future mobile development: nothing matters, just go home and smoke another bowl.