How to display the Markdown preview to the right in Visual Studio Code

When I used to edit the Markdown file in VSCode, I felt that the window was automatically split left and right and a preview was displayed on the right, but now it doesn't behave like that.

"There is nothing I can do about it, so I always close the editor (Ctrl+ )) → ""Ctrl+Shift+V"" → an editor that is not a preview remains on the right panel, but I would like to do this in one operation (hopefully automatically if I open the file or specify a language)."