Which strongly suggests that it makes use of H.265 content somewhere (the source code corroborates such functionality), likely as a carry over from content created for the iOS/macOS versions of Apple Maps where support is granted.

> It's embarrassing for a company such as Apple.

To be fair, it is still in beta. There is still plenty of time for them to recreate the content in a format with wider support before release.

Much more embarrassing is that we enable this state of affairs. The situation that keeps Firefox and Linux from jumping all over H.265 is not some natural property of the universe, it's just a social construct that we uphold by willing choice.