How to resolve the issue of Ubuntu getting stuck on the shutdown screen?

If Ubuntu gets stuck on the shutdown screen, you can try the following methods to solve the issue:

1. Force shutdown: Hold down the power button or press and hold the power button to force shutdown.
2. To shut down using the command line, press Ctrl + Alt + F1 to enter the command line interface, and then type sudo poweroff to attempt shutting down via the command line.
3. Check for system updates: it could be the system updates that are causing the shutdown to hang, you can try updating the system or rolling back to a previous version.
4. Check for hardware issues: it may be caused by hardware problems that are causing the shutdown to freeze. Check if the hardware connections are normal and try shutting down after disconnecting external devices.
5. Clean up system junk: You can use system cleaning tools like BleachBit to remove unnecessary files, which may help resolve the issue of slow shutdown.

If the above methods do not solve the problem, it is recommended to consider reinstalling the Ubuntu system or seeking help from a technical professional.