Forget the programs the article recommends, this is all you need to download YT videos or from any other streaming/video platform

https : // github . com / Bluegrams / Vividl

OR, if you don't want to install any of this'free' soft that keeps hassling you in many ways to 'upgrade' to a paid-for variant, you can download 'yt-dlp', and with a few commands taken of... youtube videos (or chatgpt, I'm sure), you impress them unwashed mortals with your 'developer' cmd magic. Too lazy? Go for a front-end-based variants of yt-dlp, like 'stacher'...

p.s. at the heart of all this paid-for software sits...yt-dlp.exe, the rest is fluff.