The file appears to be a standard Android screen recording file, likely captured while using the Google Chrome browser. File Metadata Analysis
MP4, which is a universally compatible format used for high-quality video with relatively small file sizes. Potential Context & Content Screen_Recording_20220918-154845_Chrome.mp4
If the file was originally in a different format (like MKV), it might have been remuxed to MP4 using software like OBS Studio to ensure it can be played on any device. The file appears to be a standard Android