Can I increase the width of the All Apps section of Windows 10's Start Menu?
Solution 1:
Set MouseHoverTime in HKEY_CURRENT_USER\Control Panel\Mouse to 8 you'll see a mouse hover tip immediately on entries that exceed the menu width.
I found the workaround above here.
I set my time to 100 and works nice; nevertheless, it only work on Shortcuts not on folders so, it may not help as much.