Hi, Fernando.
I haven’t used the new SVG support, but I’d imagine it works similarly to PDF support. Having said that, I’ll be honest… I’ve never favored using PDFs over their PNG counterparts.
Many of my assets are created in apps like Affinity Designer, so exporting at multiple sizes isn’t a problem or a maintenance nightmare. And, in terms of overall app size, there’s also not a lot of gain using PDFs since Xcode converts the PDF to the properly-sized PNGs.
Of course, I’ll need to play around with the SVG support before making a final determination, but I’m not ready to move away from PNGs any time soon. They’ve served me well, and I’m not feeling hassled enough by their use to jump ship… not yet, but I suspect it’ll happen one day.