I’ve not looked at the tool, but are animations driven by CSS, and if so do you embed the CSS into the SVG?
Where I work we’re looking at SVG animation tools for some graphics and the majority appear to be lottie-like tools dependent on JavaScript and other plugins which we can’t use.
SVGator[1] offers CSS or JS for animation export (no SMIL or hybrid it seems). I haven't used it but it came up in a prior HN discussion. Due to the traditional dearth of authoring tools I'm used to creating self-contained SVG animations manually via a text editor, by translating raster mockups, but glad there's at least one GUI authoring tool that considers such use cases.