GoPro GPS fails on Earth but works on Mars?

The title of this post is clickbaity, but not unrelated to its content.

Telemetry on Mars

The truth is that the Perseverance rover that landed on Mars a couple of days ago did not use GoPro cameras, but it did send back some impressive footage of its entry descent and landing event. Its cameras are built from modified Flir components and do not record telemetry themselves. Also, there are no GPS satellites on Mars, but spaceships use other orientation systems.

The full telemetry data from the Mars2020 landing has not been published yet, so this video uses fragments of telemetry from NASA's live stream.