@ellane @obsidianmd my obligatory “I change the links on the command line with perl” post
find . -name \*.md -print0 |xargs -0 perl -p -i -e 's/\[\[old name\]\]/[[new name|alias]]/‘
you can leave out “|alias" if not needed.

@ellane @obsidianmd I loosely follow PARA so my vaults are in ~/Archives/Obsidian/ where I have my personal vault and any sample vaults I’ve downloaded. And on my work laptop my work vault is there too (no syncing for that one).