tenacity is an almost dead project. If you take a look at their repository closely, you'll see that all that is happening is rebranding. Very little has happened there in the past few months. Audacity has been a work of two guys (Paul Licameli &amp; James Crook) and without them I don't see anyone is capable of adding new features and improvements to it. After all it has been their brainchild, their labor of love.
Telemetry is everywhere. From KDE to Firefox. Unless and until it's stealthy and doesn't give you options to opt-out, it's not that bad.