(Not sure if this is the right forum, but support sent me here … please move elsewhere if there’s a better place.)
The Monday.com app should have full keyboard support. Currently it is not possible to use Monday.com without a mouse, as certain UI elements cannot be activated without a mouse (e.g., there is no way to create a new task/sub-task with just the keyboard). Besides, many actions can only be performed with a lot of Tab-key and Cursor-key action (e.g., expanding / collapsing sub-tasks).
An exhaustive list of the missing shortcuts would take some time to put together, but I think you get the idea.
PS: Yes, I’ve tried everything shown in SHIFT+?