The other 2 commenters are wrong. URLs as they appear in your web browser are NOT encrypted when sent over https protocols.
The only data that is encrypted is POST data, and ONLY if it is sent over HTTPS.
So for example, a website login page crafts a URL like some.example.com/login?sessionID=12345678 and when you log in to the site extra parameters like Username and Password are sent via POST data, then anyone listening to your web traffic (like the NSA or your neighbor with wireshark) will br able to see the website and the sessionID, but not the login details as they will only show up encrypted.
Yea, ive gotten pretty wide adoption from friends and family on Signal, but id love to have a comparable product with even more features/security/privacy
Matrix may get there eventually, but for now its Signal.