Actual 2D animation has been dead everywhere for 20 years, yes. The death was pretty much simultaneous in the US and Japan with Whatever Happened to Robot Jones? & Astro Boy (2003) being the last shows fully animated on cels, in 2003.
Sazae-san used cels for the openings and endings up until 2013.
Kind of a tangent, but I had a bunch of friends finishing their animation programs at SVA in the early 2000s and they had to do everything traditionally and they all made a huge push to "#Save2D". I personally spent several months helping most of them scan their thesis projects for free.
Despite a lot of willingness the studio support just wasn't there and even with all of them established in their careers now there's just no hope of doing anything that way. I kinda felt bad that they were trained in and judged against a process that's basically dead. Not to say they didn't learn anything but a tremendous amount of their time and money was effectively wasted.
And then so many of them spent their first few years working in industry heavily exploited by the local studios, including years of unpaid work in most cases.