no apparently not. but I guess it wouldn't be too difficult to write a script to create md under each folder with same name

MovieName (Yeat) \ MovieName (Yeat).md

And manage it using trillium.

I strong suggest you take a look at the *arr, you can create folder and manage folder names easily.

Ages ago when I was going through the IMDb top 200 I would write a txt file however now with local hosted media servers I’m not aware of a way to do this conveniently.

I don't use Obsidian so I can't really tell.

Either tab + hyphen or two-spaces + hyphen

Which is the correct way to create bullet points in Markdown — using space+hyphen or tab+hyphen ?

- first level bullet point
 - space+hyphen 
- first level bullet point
    - tab+hyphen 

EDIT: I’m sorry my original post was a bit unclear. I have updated that, could you pls check again?

In Obsidian, I can easily indent a bullet point with tab and Obsidian uses tab indentation by default, is there a way to change that?

I go with hyphens + spaces. Tabs can vary in length depending on the editor / viewer, while spaces will not.