That’s exactly why you would need Facebook or Google or your mobile network operator or all of them to serve as proof of your alibi.

If the finger is pointed at you with a deep fake, you can then counter with proof from large corporations which presumably haven’t all been compromised.

You might also be able to use proof of your location in other settings, such as civil suits or domestic disputes.

Lots of people are using dash cams in a similar fashion. Proof to protect themselves from being named the liable party in a collision.

Same with forcing communications over email so you can prove what was actually communicated in the event a legal or public relations matter arises.