I have a gripe with those tests because they include a bunch of non-standard APIs whose status is literally "not on any standard track" (e.g. Background Fetch)

I have a gripe with those tests because they include a bunch of non-standard APIs whose status is literally "not on any standard track" (e.g. Background Fetch) and many of whom are opposed by both Safari and Firefox (e.g. WebHID, WebUSB)