The redesign makes it intuitive to figure out whether an item has an additional sub-page, which only surfaces when you tap ...

The good news is you can change the Start Menu icon back to its years-old left-hand orientation, among other things. Open Settings and go to Personalization > Taskbar > Taskbar behaviors > and ...

you can right-click on the Taskbar and select the Taskbar settings option. Following that, you need to toggle the corresponding button to show the Pen menu icon. Next, you can tap or click on ...