alt Hacker News> png (no compression)
To be clear, PNG only supports lossless compression, while WebP has separate lossy and lossless modes. AVIF can do lossless compression too, but you're usually better off using WebP or PNG (if you need >8 bpc) instead as it really isn't good at that.
There is lossy PNG compression that works very well for images using a limited color palette (pngquant, lossypng, etc).