Microsoft plans to support third-party Windows 11 widgets in late 2022, allowing developers to offer widgets as a 'companion experience' for Win32 or PWA apps

In the developer session 'Microsoft Build' held on May 24, 2022, Microsoft announced that it will start supporting third-party widgets on Windows 11 in the second half of 2022.

Create Next Generation Experiences at Scale with Windows --Windows Developer Blog

Microsoft Store grows with the developer community --Windows Developer Blog
https://blogs.windows.com/windowsdeveloper/2022/05/24/microsoft-store-grows-with-the-developer-community/

Microsoft will support third-party Windows 11 widgets later this year --The Verge
https://www.theverge.com/2022/5/24/23137636/microsoft-windows-11-widgets-developers-apps

Widgets are card-type content that is displayed on the widget board on your desktop, allowing you to see and manage the dynamic content of your apps and services at a glance.

Until now, the widget system of Windows 11 has been limited to native widgets such as weather and news created by Microsoft, and the choices on the part of the user have been very limited. Microsoft has announced that third-party widgets will be available in late 2022. This is expected to add more variations to the widget. Details have not been disclosed, but developers can build widgets as a companion to Win32 and PWA apps on Windows 11 with the UI content exchange platform Adaptive Cards .

Microsoft also opens Win32 app registrations to the Microsoft Store to all app developers. In addition, Microsoft has released new tools for Win32 and PWA developers, which is expected to improve the development environment. Microsoft said, 'In the first quarter of 2022 alone, new apps and games that appeared in the Microsoft Store increased by 50% compared to the same period last year.' 'Leveraging the open platform, open store, and open hardware ecosystem, We will empower our skills, talents and passions to move forward and continue to bridge the gap for this future. '