If you search for ‘bulk rename’ or ‘batch rename’ property, you might turn up some older threads.
I found this:
To be honest, I hardly ever need this and clean forgot how to do this with Linter or other plugins (I remember these faintly: Multi Properties and File Cooker…?)…
- If you search with my name for these, you can find something, I believe.
So I think these bulk operations, when such simple cases arise, are best done outside of Obsidian with an editor of one’s choice on their given operating system (VSCode Editor or other).