I watched the following YouTube on Obsidian bookmarks.

Obsidian bookmarks allows you to create a collection of easy shortcuts to notes you are currently actively working on.

With Bookmarks you can

• Save ‘filtered’ graphs
• Specific notes
• Searches
• Canvas boards

All in one place. Once you move on to different projects/notes, you can delete the bookmark folder. The notes will remain and your workplace will remain clean!