Do you have gamelauncher on your device? If yes, you have a pretty good screen recorder in game launcher. But if you dont have Game Launcher, there is a pretty good chance that you don't have a screen recorder. If you want a screen recorder with internal audio recording, i have a YouTube Channel where i showed how get samsung S10/Note 10 screen recorder on any samsung device. This is the video: https://www.youtube.com/watch?v=9_SdwlyjLyI&t=6s
