Funny… I did the same thing. Chose Grand Central as my provider… who were then acquired by Google and became Google Voice :-/
These days I still have my GV number as it’s a known number, but I never call out on it. When possible I use Signal; I’ve also got burner talkatone numbers that change regularly, and Matrix/Element for any regular communication.
I figure the combination means that no provider has a full picture and all of those providers are unlikely to aggregate to the same databases.
He probably gets tired of so many others being more popular and more incorrect.
We need a whole senate of inter generational Bernies.