Why in vs code does bookmarks reset bookmarks when switching to another branch in git?

Question

git

In vs code, I have a "Bookmarks" extension that allows you to add bookmarks to your code.
But here's the problem:
when I switch to another branch in git and then back, the bookmarks disappear completely.
How to fix it? Is there any separate file that saves bookmark data (so that I can add it to git).

Additional info:
I added vs code settings to the json file , but nothing happened. YES, I didn't quite understand what was supposed to happen. "bookmarks.saveBookmarksInProject": true