If you’re working in a strict corporate environment, Gamma is my current go-to...

https://wiki-canyon.win/index.php/Copilot_for_PowerPoint_vs_Plus_AI:_Which_Writes_Better_Slide_Content%3F

If you’re working in a strict corporate environment, Gamma is my current go-to for speed. It handles the doc-to-slides conversion efficiently, but the real winner is how it manages the transition to PowerPoint