Republican? Debatable. Certainly, it was written by republicans. Maybe you can argue it doesn't speak for all of them, only the very important ones at the Heritage Foundation.
Conservative? Absolutely. And I don't think any conservatives would even argue otherwise. I mean, this is their dream.
"with the aim of promoting a collection of conservative and right-wing policy proposals to reshape the United States federal government and consolidate executive power should Donald Trump win the 2024 presidential election."