The "DVR_Trim" tag means you likely used a built-in trimming tool to save a specific highlight from a longer session.
If you are trying to find this video on your PC, it is usually located in your folder or within a folder specifically named after the game you were playing. Desktop 2023.02.19 - 20.16.45.02.DVR_Trim.mp4
This is almost certainly a gameplay clip or a recording of your desktop activity from that specific evening. The "DVR_Trim" tag means you likely used a