[2/3] impossible to make a Signal account without having a cellular phone, so I can't. Since I can't use Signal, I don't try to learn anything else about it. I know almost as little about the specific Google services named in the article - I don't have a Google account, and most of its services require the user to run nonfree client software. As a result, I don't know whether it is possible to get some real use out of Signal without using the Google services listed in the article, or