So you can launch without a GPS lock? Thanx, I thought that was mandatory!
Yes, you can launch without GPS.
It's how most new fliers lose their drone when flying outside.
It's highly recommended to wait for the GPS lock (Home Point) to be established before launch.
If you don't wait and launch, the aircraft is in Atti-mode and will drift with the breeze until the Home Point is locked in during the flight.
RTH will go to that spot and not to you if it was launched too early.
.