Hi everyone,
Smarter 
image optimisation is now just one rule away!
You can now selectively enable WebP using Configuration Rules, giving you precise control over how and where image compression is applied.
Optimise delivery for specific routes, user agents, or A/B tests — no need to apply changes across your entire zone. One small setting, big flexibility. 
Changelog: Fine-tune image optimization — WebP now supported in Configuration Rules | Cloudflare Docs