It looks like you're referring to a specific file named . This filename format is typical for videos automatically saved or exported from apps like Telegram , WhatsApp , or certain screen recording software .
If you can describe the , I can write up exactly what you're looking for! video_2021-09-07_15-32-42.mp4
(e.g., Was it a meme from a specific subreddit, a clip from a Telegram group, or a personal file?) It looks like you're referring to a specific file named