Anyone who is interested in voice control and privacy should support Mycroft:
https://mycroft.ai/

They've struggled to get their consumer-grade product out for several years now, though the underlying software is open source and you can install it on any Linux machine today.

They released their backend under AGPL:
https://mycroft.ai/blog/open-sourcing-the-mycroft-backend/

One major issue they've been dealing with is getting slammed by spurious lawsuits by patent trolls: https://www.eff.org/deeplinks/2020/08/courts-shouldnt-stifle-patent-troll-victims-speech

https://mycroft.ai/blog/mycroft-defeats-patent-trolls-again/