I have been dipping my toes into meshtastic for the past few months, now having a T-Deck as a home repeater and a small node I carry in my pocket.

Channels can be E2EE if you set it up, but public channels are usually not.

In terms of being trackable, I would venture to say it does not protect you from being tracked. Most devices use a GPS signal to report location (though you can run them without this iirc). Most devices also require a phone in order for you to configure, and read/send messages.

Your best option would be a T-Deck without a GPS module, though as someone has stated in this thread there is a vulnerability allowing tracking of the MAC.

I find most of his videos to be conspiracy ridden and mostly fluff. As with a few other creators, he talks a ton but doesnt say much. The things he says distract from where we can actually obtain privacy in 2024 - limiting 3rd party collection and sales of our data.