For vector illustrations: convert all strokes into shapes?

Hi everyone,

I’m putting the finishing touches on a few vector graphics/illustrations for upload to Adobe Stock—some colorful compositions mixing lines and shapes, and some abstract 1C line art. I’ve got the technical and quality specs covered, but one question remains: Is it mandatory (or recommended) to convert all strokes to shapes before submitting files? As a designer, I’d personally prefer vector art that preserves strokes, so I can adjust the thickness or modify the illustration easily if needed. For non-designers, it’s probably more convenient to receive files where everything is already converted to shapes and flattened.

What’s your approach? Are there any best practices or clear guidelines from Adobe Stock?

Thanks for your insights!