> Librem 5 not only doesn't provide firmware updates for serious security vulnerabilities but goes out of the way to block the OS from doing it and block updating firmware in general

This is plain wrong: https://source.puri.sm/Librem5/community-wiki/-/wikis/Freque...

(And I think I already told you that once. Upd: @amosbatto did: https://news.ycombinator.com/item?id=30769589, and you ignored that.)