https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackSupportedConstraints/frameRate
MediaTrackSupportedConstraints: frameRate property - Web APIs | MDN
The MediaTrackSupportedConstraints dictionary's frameRate property is a read-only Boolean value which is present (and set to true) in the object returned by...
web apisframeratepropertymdn
https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackSupportedConstraints/logicalSurface
MediaTrackSupportedConstraints: logicalSurface property - Web APIs | MDN
The MediaTrackSupportedConstraints dictionary's logicalSurface property indicates whether or not the logicalSurface constraint is supported by the user agent...
web apispropertymdn