For strict brand compliance, Beautiful.ai is my go-to. It handles PPTX export...

https://www.unitedbookmarkings.win/tired-of-losing-your-branding-when-moving-ai-drafts-into-powerpoint-gamma

For strict brand compliance, Beautiful.ai is my go-to. It handles PPTX export and font substitutions reliably, unlike most AI tools that break layouts upon download