LMS Themes Don't Show What it Advertised

I have bought and installed LeranDash LMS, Elementor/Elementor Pro and WordPress.org that comes with SiteGround web hosting site for my online professional certification and academic courses. But I have been playing with LMS Themes such as Masterstudy, eLearning WP, Edufront, Educational Zone, etc but they do not produce what is advertised when I installed and activated them. They only show something different. Do I need to buy and install the themese before I can be able to see those designs and features that are advertised? If yes, then I will use the themes for my home, menu designs and then use LearnDash, Elementor/Elementor Pro and WordPress for functionalities such as videos, lectures, quizzes?

Hey there

Sorry, but im not sure how this question is related to our products, can you please include more details about the problem? what is not working, where? how can I see your problem?