They have an "Office Key" on some official keyboards. Pressing Office+L opens LinkedIn. The Office key is actually mapped to that long modifier shortcut.

Honestly, an actual ereader might work out better for you if that's all you plan to do.

Because they can't break that. It's using real Macs, so if they break iMessage for Beeper Cloud, they break it for their customers.

No, they know that a message has been received, but the phone is what decrypts the message. Beeper can't see it.

No, it's even less secure than expected. We expected that Sunbird would have access to your Apple ID and messages. Instead, everyone in the world has access to your Apple ID and messages.

Wayland is a "display server," which basically means it manages the way GUIs show on the screen. X (most recently X11/Xorg) was the standard for over 30 years, but it was designed for computers 30 years ago. Modern concepts like scaling and high refresh rate displays need extensions to it, but it's really complicated and hard to work with, so a lot of improvements that need to be made can't be made. It's also fundamentally insecure, as every window has access to both the contents and the input of any other window. Wayland is a modern replacement that focuses on security and expandability, and basically everything is working on switching to it. There are growing pains, but it's constantly improving, and most distros use it by default now.

But that needs air. There's no air in space.

As well as running on all distros, it also provides other benefits:

• You can run modern software on old/stable distros
• Dependencies being (mostly) included in the package means that different applications can more easily have different versions of dependencies
• Finicky packages are more stable for that same reason
• Distro maintainers don't need to package as many applications (https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/46ZZ6GZ2W3G4OJYX3BIWTAW75H37TVW6/), and application maintainers don't need to worry about multiple distros and versions of dependencies

However, some applications don't work as well because of the sandbox, but I think this will change with the rising popularity of Flatpak, as more developers will use portals instead of direct access. Also, there are some bugs and missing features, like how heavy use of the org.freedesktop.Flatpak portal for dbus causes a memory leak (https://github.com/flatpak/xdg-dbus-proxy/issues/51), but it's overall pretty good. Most applications I use are Flatpaks.

Finally. I was having some weird graphical glitches, so I switched it to the Wayland backend, and I've not noticed any issues. It's totally stable (at least for me).

Have you tried OpenRGB?

Behavior-based antivirus is extremely difficult, failure-prone, and almost entirely unnecessary because of how secure Linux is, so they don't exist to my knowledge. Signature-based antivirus is basically useless because any security holes exploited by a virus are patched upstream rather than waiting for an antivirus to block it. ClamAV focuses on Windows viruses, not Linux ones, so it can be a signature-based antivirus, but not many people run an email server accessed by Windows devices or other similar services that require ClamAV, so not many people use it, and nobody made any alternatives.

If you're worried about security, focus on hardening and updates, not antiviruses.

Linux has a "compose key," which lets you press the compose key, O, then /, which makes that character (Ø and ø, to show it working, as well as ∞, ™, °, ², ß, ä, →, and many more). There's a port for Windows called WinCompose.