Signal’s defaults are pretty good about that. Push notifications are both opt-in and the information they send can be selected by the user. You can have it say “new message” and that’s it. Or the senders name. Or the whole message.
I agree that it’s not intuitive that that’s a leak to most people, but push notifications are kind of wonky how they work.
No matter how good the protocol or client encryption, your privacy is only as good as your own physical security for the device in question.
Given that if you lose your private key, there is no recovery, I would be surprised if there were real back doors in the clients. Maybe unintentional ways to leak data, but you can go look for yourself: https://github.com/signalapp/Signal-Android
They have one for each client.
Wait til your table with all the checksums gets messed up on an “older” btrfs install. Happened to me on a VM because I didn’t know copy-on-write should be disabled for large frequently partially updated files. It also slowed that VMs IO down a lot.
Like most file systems, BTRFS is great if you know the edge cases. I recently moved to ZFS on my new work system, which has been a great change in terms of in-line snapshots and the like.
If EXT4 meets your needs, that’s awesome. If you understand how to use a different FS well or are willing to learn (and risk), I would also encourage other options as well.
I had the same experience. Nano is great if you’re used to notepad or a generic, limited text editor.
Once you learn a terminal editor like eMacs or vim, why go back? So much less hand motion going to mouse, arrows, and back.