Slidemaster in PowerPoint
When you want to have all your slides to have the same look such as logos, font etc then you don't need to do this each time manually to every slide you create. This can be done via the slide master feature in PowerPoint- just applying your font and images once as necessary.
Here is a quick guide on how to achieve this:
https://support.microsoft.com/en-us/office/what-is-a-slide-master-b9abb2a0-7aef-4257-a14e-4329c904da54