I don't think there is a public API for SVG display, except using a web view.
There is, however, a private API called CoreSVG - I know this because I have seen it mentioned in error messages! (Hmm, I guess I'm not certain if it is in iOS or macOS or both.) So it might be worth filing a bug asking for CoreSVG to become a public API.
Topic:
UI Frameworks
SubTopic:
SwiftUI
Tags: