My question How to download a video embedded in any website? was marked as off-topic because they thought I was asking for a product that can solve my problem, but I clearly ask how to do it manually, it's literally what's written in my question.
I just mentioned a software that can get the video urls to make a point that if a software can do this then probably it's possible to search for those urls by hand.
One problem, but not the whole problem, is the line
but it's a paid software and I'm looking for a free solution.
Implying that you want a free program because the one that works is not free.
The other problem is that the question is far too broad and there are many website technologies and ways to obfuscate or otherwise bypass the "normal" means of just giving a user a link to a video and letting them download it.
The reason one program works will be because of time invested in making it work.
We cannot go through every website trying to figure out how it obfuscates its download and showing you how to get a link for it. Specific website problems are also off-topic here.
You already know you can go through the source and hopefully extract a link, but your problem is with websites designed to prevent that and also skirts away from "fair use". If they are actively working to prevent you downloading the videos then arguably you don't have a right to download them.
So I chose one of four reasons why I didn't think the question was appropriate.
