How to find theme names? In my knowledge

Hi
Anyone knows about the WordPress site's theme finding methods? I am using the theme finder in my google chrome extractions it's easy to find the WordPress themes! other than that we can use some free online theme finding tools Eg https://www.wpthemedetector.com/ it's fully free to use!

If anyone needs more details or suggestions, please ask your doubts in the comments I will reply to them asap.

Thank you!
And also we can find the theme name by Using Inspect Elements of the Browser. Just go to the site and open Inspect Elements & Click on sources Tab. Then go Wp-content --> Themes. You can see the theme name.
But this method will be work only if site's security functionalities disabled.