"Restore All" and "Delete All" button in Trash is the function to restore or delete all items that are in both "Items I Deleted" and "Items I Own" filters.
So if there are any items in either filter, I think the buttons should be pressable in Trash.
But if there are items only in one filter, the buttons are grayed out in a filter that has no items.

This can cause confusion, so I hope it would be any behavior like the following.

• If there are any items in either filter, the buttons are pressable even though a user selects which filters.
• If there are items in only one filter, a filter that has items is selected by default in Trash.
• Add a filter that shows all items in both "Items I Deleted" and "Items I Own".