“I think for the layperson, it comes down to trust,” says Kyle Rankin president of Purism (@kyle). “Does this vendor that’s selling you a phone require you to trust them to be secure? And then if so, are they worthy of that trust? It boils down to that.”

MIT Technology Review mentions Purism's Librem 5 in this article by Patrick Howell O'Neill.

https://www.technologyreview.com/2022/08/19/1058243/erik-prince-wants-to-sell-you-a-secure-smartphone-thats-too-good-to-be-true/