I cycled from Rankweil (near where I live) to approx Bregenz.
The map suggests 1 hour for journey. It took me 2 1/2 hours, including one sunburnt leg!
Video (on my NAS server at home, prob slower)
https://www.myqnapcloud.com/smartshare/6ei6f8217p84o27su8801z6c_6nPzhiS
Video (on my Yandex disk. Should be fine for streaming.)