@primoz.rome If you fetch that asset’s url property (not anything in the responsiveImage), it should be the raw SVG exactly as you uploaded it.
e.g. https://www.datocms-assets.com/150507/1738109732-person-2.svg is just:
Is that what you meant, or am I misunderstanding?
PS Coincidentally, see this other topic from today for some SVG nuances… SVG in responsiveImage not working