What are the similarities and differences in the executive branches of Russia and the US?

Both Russia and the United States have a presidential system as the head of their executive branches, with the president serving as the chief executive. However, the U.S. president operates within a system of checks and balances, with significant power shared among the legislative and judicial branches. In contrast, the Russian president wields more centralized authority, often exerting substantial control over the legislature and judiciary. Additionally, the U.S. has a more established tradition of democratic governance, while Russia's political system has been characterized by increasing authoritarianism.