Do you think so? From the people I know I think cutting meat and fossil fuel subsidises would be very unpopular. We have climbing food prices so if meat became more expensive I think there might be uproar - it's needed though!
Apparently looking back, it's harder to find some of that polling that I remember reading. It depends on where in the world you are, but here's some polling showing support for removing or reducing some of the animal agriculture subsidies
A new survey has found that 78 percent of Americans want federal farm funding to prioritize food for people over feed for livestock.
Though in looking back for some of these sources, I did find an interesting study for fossil fuels subsidies showing that the polling for carbon taxes and subsidies was pretty similar in 5 developing countries (Ecuador, Egypt, India, Indonesia and Mexico) with support varying on more of what the money was put towards instead.