The Task Manager Does Not Display Startup Apps in Windows 11 Insider Beta Build 22623.891 flaw has been validated by Microsoft through the KB5020040 update release note page made available to Windows 11 Insider Beta users, contrary to recent rumors.

After a few days had passed, was the issue still present?

Okay, let's talk about it since I just so happened to discover this bug.

All lists of programs running at startup for UWP applications or programs you can download and install from the Microsoft Store are back on the startup item page in Task Manager, as shown in the following image.