I just fully transitioned from InDesign to Affinity Publisher last month (yay, no more subscriptions) .
I never fully appreciate the simple function of moving a page to before/after a certain page until it is missing. This will be a great function to add to Affinity Publisher. I find the process of dragging the spread to a specific location to be tedious for a larger document. I can theoretically hold down the spread that I want to move and use my mouse scroll wheel to scroll to the location that I want, but half of the time, when I drop the spread to the new location, it'll arbitrarily put it somewhere else. A bug perhaps?