Cameras like those from brands such as Vantrue , Nextbase , or generic Chinese manufacturers often use "G" followed by a numeric sequence to denote gravity-triggered (emergency) recordings.
Files with this naming convention often originate from surveillance systems, smart doorbells, or vehicle dashcams.
Alphanumeric codes starting with "G" are frequently part of driver packages or feature demonstrations for PC components.
Search results show similar alphanumeric sequences (e.g., US12450784B2) used in patents for augmented reality interfaces and peripheral video generation for vehicles.
Is there any nearby, like a dashcam or a specific PC motherboard?