The filename appears to be a specific identifier for a video file, often associated with dashcam footage, surveillance clips, or specific internet archives like those found on Reddit or YouTube's "unlisted" rabbit holes.
The fascination with g4_01358.mp4 stems from . When you watch a video titled "Scary Car Crash," you know what to expect. But when you click on a string of numbers, you are entering the unknown. g4_01358.mp4
Many automated camera systems use this naming convention (G-sensor/Group 4, followed by a sequence number). The filename appears to be a specific identifier