Steps to reproduce:

• Turn on mouse tracking in NVDA.
• Hover mouse cursor over taskbar items. In the same way, navigate the toolbar buttons of Windows Explorer, the top menus of the New Notepad application with the mouse.

Actual behavior:

NVDA will just say "DesktopWindowXamlSource" instead of naming items.
The same is true for all applications developed with Windows 11's new Flat Design. Like PowerToys that don't come pre-installed with Windows.
Narrator items read their names as expected.

Expected behavior:

NVDA must accurately report information on items, as Narrator does.

System configuration

NVDA installed/portable/running from source:

Installed

NVDA version:

NVDA 2021.3.4

Windows version:

Windows 11 Version 10.0.22000.588 Build 22000.588

Name and version of other software in use when reproducing the issue:

Other information about your system:

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

If NVDA add-ons are disabled, is your problem still occurring?

Yes

Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?

Yes