Claiming that "W" is a holdover from "analog" is more than a "bit" disrespectful and insulting.
Call letters, whatever their first letter, are a holdover from the 20's. That's the nineteen-twenties, not the current decade. Radio began as something experimental, and the call letters were used because listeners might be thousands of miles away... and in the beginning, there were just a few frequencies in use!
As I said, in most of the world stations use names, not call letters.
How many people would know Joe Biden if he was called "JRBF" (Joseph Robineette Biden Finnegan) instead?
For about 50 years, since music formats took over radio, stations have tried to get calls that say something... WFUN in Miami, KILT in Houston, KLIF in Dallas, WAKY in Lousiville, WAPE in Jacksonville, WAYS in Charlotte. Or calls that are taken from the name of the station such as "Coast" in LA or "Easy" with an E and a Z in the calls. Or fabricated names like "Keener" in Detroit or "Wibbage" in Philly. Or phonetic calls like WZNT for "Z-93".
Or what may be the best of all, Keno in Las Vegas! Or Kern in Bakersfield. How could you be more memorable?
But some stations had ego calls. My first station job was at an AM that had been WSRS, for Sam R Segue. How unforgettable. They brilliantly named it WJMO, which was easier to say but equally forgettable. I learned from that.
I've been associated with a couple of dozen top rated stations (#1 overall or #1 in its demo) and none of them has used call letters as a name. And where legal, the calls were never, ever used on the air.
Call letters are not intuitive, and are confusing to most listeners. And today, a station's name has to be uniformly applicable to broadcast radio and every form of streaming.