The Taskbar in Windows allows for monitoring of app statuses, time, and quick access to pinned applications. If it freezes or becomes unresponsive, the following tips will assist in resolving the issue.

Restart Windows Explorer
Right-click on the Taskbar => Choose Task Manager.

Click on 'More details' to expand the view.

Find and right-click on 'Windows Explorer' => Select 'Restart'.

Temporarily disable Cortana
Right-click on the Taskbar => Choose 'Task Manager'.

Find and right-click on 'Cortana' => Select 'End task'.

Create an additional User Account
If the issue persists, create a new User account, grant Administrator privileges to it, and utilize it. For instructions on creating a User and granting Admin privileges, refer to the following articles:
Guide to creating a new User on Windows 10
How to grant Admin rights to a User in Windows 10
Use the Restore Health feature
Click on 'Search' => search for 'cmd' => select 'Run as administrator'.

Enter the following command and press 'Enter'.
Run the command dism.exe /Online /Cleanup-image /Restorehealth

Afterwards, the checking process will commence and restoration will occur.

Step 3: When the notification The operation completed successfully appears, close the Command Prompt window and restart your machine.

Utilize the command sfc /scannow
Some foreign forums have had members fix the taskbar issue with this command. Follow the instructions below:
Step 1: Go to 'Search' => 'cmd' => 'Run as administrator'.

Step 2: Enter the following command and press 'Enter'.
sfc /scannow

The scan and repair process will commence.

After completing the scan and repair, close the Command Prompt and restart your device.

Use commands in PowerShell
Restore AppX in PowerShell to improve Taskbar performance. Follow these steps:
Right-click on Start => choose Windows PowerShell (Admin).

Enter the following command and press Enter.
Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register '$($_.InstallLocation)\AppXManifest.xml'}

Restart your device after the process completes.

Reset Windows 10
If none of the above methods work, consider resetting your computer. The detailed steps are outlined in the article below:
Reset Windows 10 to its initial state, step-by-step guide
To resolve the taskbar issue, you can also try simpler methods such as restarting your computer, scanning for viruses, and other methods outlined in the article above. Wishing you success!