Powerpoint template and formatting - 04/11/2023 03:57 EDT

I am preparing a 30-40 page power point presentation . I will need someone to design/ create a nice format that can act as a template to run throughout the presentation to which I will then supply the content in stages to be tweaked with pics / images and place all the text?
Attached a very clean clear format that I rather like - but happy to hear of other design templates .