Standard mobile plans in France have included unlimited SMS since the mid 2000s I’d say. People still use it, but WhatsApp/Messenger are pretty popular too.

Europeans don’t text, they use messenger apps

It really depends on the country. SMS is still commonly used in France for instance.

I use Joplin with a self hosted WebDAV for syncing. Works like a charms on all my devices.

The runner is open source, and that’s what matter in this discussion. If you host the model on your own servers, you can ensure that no corporation (american or Chinese) has access to your data. Access to the training code and data is irrelevant here.