Dutchie

Signal is not on F-droid. There is no Guardian repo on F-droid. The link you posted directs to the Guardian page about Signal, but nu info about Signal being on F-droid

Edit : found the repo on https://community.signalusers.org/t/make-signal-available-in-fdroid/2608/161

Guardian repo: https://guardianproject.info/fdroid

Or an AppImage

I know, most people I know stick to whatssucks and faciesbook messenger.

XMPP and Threema don't require a phone number. And if you want you can run XMPP on your own server.

Seiko 5 SNKL 45

In netherlands a sim lock is not allowed for years. Nokia had never sim locks on their phones. As far as I know, bootloader locks are done by the manufaturer not by the provider. Edit down -> done

It's not about coverage but about money. SMS is in my country (nl) free, for data you havd to pay. Bedides that SMS works on every phone from simple gdm to smartphone

I bought this watch at poljot24.de, they regulate the watches before shipping www.poljot24.de/en/faq/

Take look at Lenovo, almost stock android unlike Samsung that's full of bloatware

Optical viewfinders don't drain the batteries.

Olympus OM and Olympus Pen have not an optical viewfinder,

First I don't have or use whatsapp. But maybe you need the play services to get whatsapp working on LineageOS