This is a demo showing the accuracy of gopro’s time sync QR code using the gopro labs firmware. I also show a workflow in premiere to align your clips in sync on a timeline with blank space representing time between clips.
I am testing with a Hero10 and Hero11 black.
GoPro Labs:
https://gopro.com/en/us/info/gopro-labs
Time Sync QR code generator website:
https://gopro.github.io/labs/control/precisiontime/