Telegram on iOS crashes when browsing stickers or gifs longer than 30 second
If you open the sticker/gif panel when entering a message, flip, twist, rotate, no matter how, but view them, 15-20 seconds - the application crashes. Steps to reproduce Entering a message; Click on the…
WebP and AVIF aren't better than JPEG XL.
They cannot compress old JPEG files losslessly (and thus they don't offer lossless decompression back to JPEG).
WebP does not support deep colors (only TrueColor). Chroma subsampling 4:2:0 is mandatory in lossy WebP files.
AVIF does not offer good lossless compression at all. Lossless WebP files are smaller than lossless JPEG XL only when a screenshot of ClearType text is compressed (an example of such screenshot is attached below).
Lossy WebP files are worse (in terms of quality-to-filesize ratio) than either AVIF or JPEG XL. Lossy AVIF files can be better than lossy JPEG XL files when both are compressed below 1 bit per average pixel (especially below 0.5 bpp), worse otherwise.
WebP files cannot be displayed progressively (only top-to-bottom). AVIF files currently do not offer even top-to-bottom progression and thus they have to be entirely delivered before they are displayed. (Future AVIF encoders and decoders may offer several layers of progression.) Lossy JPEG XL files are always progressive.
Likewise, AVIF files are better than old JPEG and also better than WebP. Below 0.5—1 bpp AVIF compression is better than JPEG XL. If you believe that Telegram should support AVIF everywhere, then I wholeheartedly agree. Please vote for my earlier suggestion support AVIF images #3520
The first web browser that supports JPEG XL is officially released (Safari 17).