Windows Subsystem for Android (WSA) enables your Windows 11 device to run Android apps available from the Amazon Appstore.
Subsystem resources setting lets you choose if you want the Windows Subsystem for Android to be open in the background and always ready to open mobile apps.
You can select to have WSA open in the background As needed or Continuous.
Manage settings for mobile apps on Windows - Microsoft Support
Learn about the settings for mobile apps in Windows, and how to adjust them with the Windows Subsystem for Android™ Settings app.
This tutorial will show you how to change WSA to be open in the background As needed or Continuous for your account in Windows 11.
1 Open the Windows Subsystem for Android™️ Settings app from Start > All apps.
2 Click/tap on System on the left side of Windows Subsystem for Android™️ Settings. (see screenshot below)
3 Click/tap on Subsystem resources to expand it open.
4 Select (dot) As needed (default) or Continuous for what you want.
5 You can now close Windows Subsystem for Android™️ Settings if you like.