It shocks me that nobody is talking about Safari. Safari does not support WebP except Big Sur. 80% of mac users have no Webp in their native browser Safari. That is normally fine because Safari will instead load the JPEG version of the image. Except when that doesn’t work due to an obscure bug.

I’ve seen this happen on multiple clients websites it only affects around 1% of images but once it happens you basically have to restore every image to JPEG and update all paths / URLs to make sure images will load. JPEG images work fine, I’d prefer to stop generating countless image files and have a simple opt in for WebP.