Fix the Wait Limit in iPhone Shortcuts With This Simple Trick
The Wait action can handle more than a few minutes, but there is a solution.

The "Wait" action in Apple's Shortcuts app is a useful way to make the shortcut pause for a specific amount of time. You can set the action to wait for 30 seconds, for example, before the next action takes place. You might want to use this to let an app open or a page load before the next action happens.