For strict brand compliance in PowerPoint, I use Gamma. It handles complex...

https://front-wiki.win/index.php/Can_Microsoft_Copilot_Build_Slides_Using_My_Slide_Master%3F_A_Real-World_Assessment

For strict brand compliance in PowerPoint, I use Gamma. It handles complex layouts well, though you must watch for pptx export font substitutions. Perfect for high-stakes decks, it creates a 10-slide draft under 60 seconds with reliability.