Tuhi, your storage assistant · Asking Tuhi
How do I change the Apps grid shortcut from the Home screen?
Short answer: Click the small shortcut keycap next to the heading at the top of the Home screen and choose a new combination, or change it in Settings → Shortcuts under Open the Apps grid.
Click the small shortcut keycap next to the heading at the top of the Home screen and pick a new key combination from the dropdown. That shortcut opens the Apps grid from anywhere on your Mac.
You can also change it — or switch it off — in Settings → Shortcuts, under Open the Apps grid, which is where every global shortcut Storage Studio uses is kept.