I haven’t had an issue with webp support myself, kinda surprised to see people stating it like it happens all the time
The only tool I’ve used that didn’t support it was the FOMOD creation tool when making some small Starfield foods, and that actually DID support webp, it just threw an error but would show the image and mod managers would load it no problem
Or is this an example of the difference between people who use Linux and Windows regularly?