How to add a shortcut to the 'My Apps & Games' screen of the Google Play Store?
You'll need an app like Tasker than can assign actions with activity launches.  Create a New Task, name it, and Add an action.  Go to System → Send Intent.  Then fill out these fields:


Action

com.google.android.finsky.VIEW_MY_DOWNLOADS

Package

com.android.vending

Class

com.google.android.finsky.activities.MainActivity

Target

Select "Activity"



Assign an icon from the lower right.  Leave Tasker.  On your desktop, create a new shortcut, Task Shortcut, and select the task you named.