Using mindmaps for learning vocabulary

YouTube video link: How Mindmaps can help you learn a language - YouTube.

Has anyone tried this? How did you get on?

Seems quite interesting…and I’ll try anything once…

(But it’s not clear exactly what they’re selling? The video seems to explain everything I need to know!)

I have already forgotten my mindmaps. In my experience, it is not very effective. I think focusing on articles and recordings of your interest until understanding of it is much better than bearing complicated mindmaps in a head.