I just read a biographical novel on John Adams. He apparently was a strong component of our tripartite form of government— Executive (President), Legislative (Congress), and Judiciary (Supreme Court). He felt their strengths should be balanced to prevent one from having total power. He had strong criticisms of the government being organized as an outgrowth of the French Revolution and thought it would fail. It did end up in Napoleon’s dictatorship, and many years of poor governance.
The French have a monarchical presidency - the President is an elected monarch and far more powerful in the country than the US President (due to the checks and balances and the decentralization) or the German Chancellor (as there is the ceremonial president and also the heavy decentralization) and even the British PM (who is quite powerful as the queen is basically a rubber stamp)