Hello, 114fv
Welcome to Microsoft Community.
It sounds like you’ve had quite a stressful experience! Although your full scan showed no results, it’s still possible that malware could be involved, especially with the strange notepad note you found. A factory reset might not be thorough enough if you’re concerned about a potential virus. A clean installation of Windows is a more comprehensive solution: How to make clean install of Windows 11 - Microsoft Community
Ensure all important files are backed up to an external drive or cloud storage. Before restoring your backed-up files, scan them with an antivirus to ensure they are not infected.
After the installation, make sure to install the latest drivers for your hardware, and reinstall your essential software, including NordVPN and Discord.
Yuhao L
Microsoft Community Technical Support