Snapchat does not use end-to-end encryption for messages, so it doesn’t even belong in the conversation.

WhatsApp and FB Messenger are somewhat defensible choices since they at least use E2EE by default (Messenger did not until recently). However, there are a few good reasons to favor Signal:

1. It is open source. Interested parties can actually verify that Signal’s encryption claims are true. Interested parties can also audit new versions as they released.
2. Facebook/Meta, as a company, has a long history of tracking users, leaking user data, and even conducting psychological experiments on users without consent and in secret.
3. WhatsApp and Messenger only allow 6-digit PINs to secure your messages. With that PIN, you can decrypt those messages. Signal allows for longer alphanumeric passcodes.
4. Facebook makes no promises not to track your usage of Messenger or WhatsApp, only that the messages themselves are encrypted.

It used to say “container-native”. They recently changed the wording, but there was no technical change.

It’s a Linux distro that runs locally, like any other. It has no particular tie-in with any cloud services. If Flatpak, Docker/Podman, Distrobox, Homebrew, etc. are “cloud” just because they involve downloading packages hosted on the internet, then I don’t know why you wouldn’t call “traditional” package managers like apt, dnf, zypper, etc. “cloud” as well. 🤷 So yeah, I feel your confusion.

The big difference compared to something like Debian or vanilla Fedora is that Bazzite is an “immutable” distro. What this means is that the OS image is monolithic and you don’t make changes directly to the system. Instead, you install apps and utilities via containers, or as a last resort you can apply a layer on top of the OS using rpm-ostree.

The only thing cloud-related about any of this is that atomic OS images and containers are more common in the server space than the desktop space.