There is an issue about adding VR200 ([neato] Please add Vorwerk robots · Issue #4264 · openhab/openhab-addons · GitHub), and there seems to be a custom build version for openHAB 2 that contained the support. So it looks like there is no support in OH3 at the moment.
The GPIO binding was an openHAB 1 version, and that isn’t supported. There is still a pr open for a new openHAB 2/3 version. So it looks like there is no support in OH3 at the moment.