It was actually implemented the same year as that announcement

It was Chrome mobile only afaik. And yeah it was also silently killed.

I guess the author didn't follow Google enough.

https://paavandesign.com/blog/how-to-use-chrome-s-new-follow...

Chrome mobile used to have a native RSS Following feature since 2021.

https://blog.chromium.org/2021/05/an-experiment-in-helping-u...

It seems they killed it in 2025, maybe to make space for the AI button.