But I also posted a PEW poll which showed the decline from 2020 to 2024, so that buttresses the flaw in 2020 - shows PEW found relatively the same thing in 2020, and noted the decline to 2024, but it's still a majority.

I think the portions of the PEW poll that you're referring to are the ones that simply asked whether people wanted more wind/solar or not (most of the poll focused on wind/solar). That's not the same as the Green New Deal, which is a vastly more expansive set of government policies (technically it's not even expressing support for government doing anything at all). Most of the policies of the GND weren't included in the PEW poll at all.
The few parts of the poll that dealt with matters other than wind/solar energy contradict the GND - a large majority of respondents do not want rules that would dramatically increase the share of electric cars, and a similarly large majority do not want the U.S. to phase out fossil fuels entirely rather than a mix of fossil and renewable energy.

So yes - generally, people would like it if there was more solar/wind in the country than not. Which is probably why those types of subsidies have actually made in into law over the years (opposed as they might be from time to time). But that's not the same thing as supporting the Green New Deal.