This is a plugin for Obsidian Canvas (https://obsidian.md), it allows to select nodes by tags and show only those nodes

Usage

When you have a canvas like this:

Select one or more tags you are interested in:

Another example:

You can move tags to specific groups using json:

And finally you can use flexible settings to improve filtering:

This plugin is a specific improvement of this (https://github.com/IKoshelev/Obsidian-Canvas-Filter)