@PixelWizard said:
Fetch TMDB Stats via the official TMDB API
Is there any way to fetch total no of movies, tv shows, seasons, episodes, peoples, etc.?
For example:
See the stats on the about page https://www.themoviedb.org/about

Over the course of a day, some items are added and some items are deleted.
There is no online count.
But... every day a file with the Valid IDs is exported.
Maybe this will solve your problem.
https://developer.themoviedb.org/docs/daily-id-exports
You can download these files and add up the number of lines in each one.