sure it's as trustworthy as the project owners want us to believe: https://drewdevault.com/2018/08/08/Signal.html I'm looking into the other open source alternatives

there's an article making a compelling argument that Open Whisper Systems is not trustworthy: https://drewdevault.com/2018/08/08/Signal.html If you don't feel like reading the whole article, just go to the last section "Trust

keyboard oriented you can check [next](https://github.com/atlas-engineer/next). Otherwise, there a [good and short article](https://drewdevault.com/2020/03/18/Reckless-limitless-scope.html) about why it's now virtually impossible to have other browser than firefox (gecko) and chromium