It hasn't necessarily been out front-and-center in the mainstream media, but it's definitely something getting talked about in mainstream financial circles routinely. Here's a bit of a partisan source from a quick google search, but it's got a lot of links and citations you can follow up on and I believe it is basically correct in its facts, even if you disagree with the conclusions drawn from them: https://www.newswars.com/cashless-society-democrats-propose-...

It's up to the "trial balloon floated in Congress" point. The trial balloon has so far always been shot down, but it's really only a matter of time. If the government could just push a button and have access to literally every single transaction that occurs, they would certainly do it. They wouldn't even blink.

Also, I want to say, I'm just linking one example. You can follow up with search terms similar to the ones used in that article, and probably find even more mainstream sources discussing it. It's a topic in the air in financial circles.

Edit: Bit more searching, here you go with something much more mainstream, Forbes: https://www.forbes.com/sites/advisor/2020/10/22/the-pandemic...

And again, my main point here is that it is a topic of conversation, not making any particular claims about where we are currently.