How to make a subscription to the page of author's music https://method-loskutova.center/video/muzyka-dlya-seansov/ of people who constantly listen to it?

Question

Automation

I want to make some kind of trick on the site, so that people who listen to music on the site regularly can, with the constant use of this page, by clicking on some functionality (on this page), link this page to their browser. I turned to the programmers, they could not advise anything sensible. The goal is for regular customers using this page to automatically add a button to the browser that redirects to this music section.

Answer 1

Well, you still need to keep track of how long each user spent on the page, decide on the concept of "often", compare these 2 indicators, and let those who watch "often" see this button.
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Answer 2

and if then this button is shown to everyone, then how to implement it?