Since not every server environment supports translating JPEG uploads to WebP format, it's worth indicating this to site administrators in an easy-to-understand way. While we already have some basic PHP extension information about image capabilities in the Site Health info tab, it may be worth adding something explicitly about WebP in the Site Health "Status" tab.

For example a message like "WebP images are (not) supported by your server environment", with a brief description on why this is relevant. And potentially a note to "Ask your hosting provider to enable/update xyz"

Also see https://wordpress.slack.com/archives/C02KGN5K076/p1643112555307200?thread_ts=1643041077.295600&cid=C02KGN5K076

cc @adamsilverstein @getsource @spacedmonkey