Any Idea on "Memo Current Playback Info"?

Hi I'm new to KM and macro world.
Really appreciate to you guys for sharing knowledge.

One thing I really wanted to make was macro that memo the playback position of current playing media (mostly films on Netflix, Disney+ via Safari, sometimes via VLC).

But I have no idea how to crawl/scrape data (mostly I used Applescript) like File/Series title, Episode number, especially the playback position (on web!)

What could I start to dig in first? Seems there's no thread or idea on the forum, anyone can help build up this idea?