Another web-based SVG tool I use regularly is https://jakearchibald.github.io/svgomg/, an extremely configurable optimizer.
Inkscape is open source, file a feature request?
Worth noting it deems itself "SVGOs missing GUI" (and does a splendid job at that). If one needs to batch process files or sth like that, svgo's CLI is still there.
Props to Jake Archibald!