Microsoft have patched the 20H2 of Windows 10 currently in the beta and release preview channel for Windows Insiders. KB4577063 takes the build to 19042.546 and includes a couple of fixes:
We fixed an issue that prevents a device from entering Modern Standby.
We fixed a reliability issue in Microsoft Edge that occurs when you open multiple windows or tabs.
20H2 could be rolling out in the next couple of weeks. Here is my review of the changes: