Well… some programs make pdfs or svgs that don’t get interpreted very well by Glowforge, particularly with scaling issues or in cases where images aren’t properly embedded.
For example, AI has two ways to export svg, I think they’re “export“ and “save as”. One of those has issues with scaling and the other doesn’t (an AI expert can weigh in here).
If it were me I’d be looking for workflow suggestions for your particular tool chain, not so much worrying about the file format first. Are you having a problem you’re trying to resolve?