No action is required. This is an informational artifact of user behavior.
Google uses these identifiers to provide a better user experience, not for tracking individual users in a malicious way. The rvo1 tag helps in: google https wwwgooglecom m client msandroidsamsungrvo1 link
It wasn’t a URL he had typed. It had appeared in his notes app after his Samsung phone glitched during a software update. The device had rebooted with a strange hum, and there it was—like a digital whisper. No action is required