While you are reading listen in to the latest Pinetalk (Pine64 Community) Podast! Episode 12.
Peertube Video: 7 Options to restrict Non-Internet programs from sharing IP address/potential future backdoors (restricting network). Video includes how and why discussion. [For those who don't like reading!]
Audacity as an example (can be applied to all non internet needing processes).
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.