This tutorial covers how to use any of the Graphic & Logo Templates in Affinity Designer.
How to download the files, install fonts, and edit the designs in Affinity Designer for iPad. This tutorial covers all Affinity graphic and logo templates bundles from TheVectorLab: https://thevectorlab.com/collections/graphic-logo-bundles-for-affinity
Using the templates in Affinity Photo is essentially the same process. You can find the Affinity Designer for Desktop Tutorial Here.