This is a bug in the windows 11 ARM build, To fix that you need to do as follow

1. Press 'fn+shift+f10'
2. Press 'option+tab'
3. Then you will see a UAC window, move to that window by pressing 'option+tab' and then press 'yes' button

Then CMD will be opened

If you have SnagIt installed, check it's hotkey configuration....by default, it is configured to capture Shift + F10. Change it to something else to get Shift + F10 workiing normally again.

You can overcome this limitation by also passing in Fn, so in your case you'd press Shift+Fn+F10.

Given the screenshot you present, your application is at the 1st position in the taskbar.
Its context menu can be then accessed by pressing Win+Alt+1.

In general, corresponding keys 1 2 3 4 5 6 7 8 9 0 apply to the leftmost 10 apps currently present in the taskbar.

If your application is at position higher than 10, simply drag & drop it somewhere between the first 10 applications and the shortcut for its new position will start working immediately.

Source: Keyboard shortcuts in Windows

Hint: pin your favorite applications to the taskbar so they will keep their position constant so your keyboard shortcuts will always remain the same.

The universal solution regardless of app position is sending the context menu key (technically known as AppsKey) using some other key combination using AutoHotKey.
Example for sending it using Ctrl+F10:

^F10::AppsKey

Since keyboard input routines distinguish between the AppsKey and Shift+F10, you cannot force all applications by yourself to treat these two shortcuts in the same way (if the authors of the application do not want to). You either need to contact their tech support to fix possible discrepancy or implement a key mapping on your own as I did show you above. Without 3rd-party app, you can remap the key using Registry, but it is more difficult.

If you prefer keyboard shortcuts during most of your productive time, the AHK will soon become your life-long companion due to its practicality and endless possibilities. For example, you can limit the above mapping only to taskbar and not to other apps. Or you can extend the use of the AppsKey to be another gateway to your favorite actions, e.g. AppsKey+A, AppsKey+N etc.