Graphview: Can I filter on more than one path or tag?

Is there a FAQ or similar for the Filter and Groups syntax? I’d like to make a graph of two subtrees. Eg. path:home OR path:work
Does the Filter syntax allow combining multiple path or tag references?

Yep. In fact “path:home OR path:work” is a valid filter. If you’re filtering by directories you might want to use “path:home/ OR path:work/” instead in order to catch the files you mean. You can also use parentheses to make groups.

You can find much more info on how filters work here: Search - Obsidian Help