Game analysis tutorial

Good evening everyone. Apologies if this post is in the wrong spot, has already been discussed, or any other mistakes I may have made. It's my 1st time posting. I've been a long time chess player but I'm absolutely atrocious. I attempt to use the analysis but I can't really tell what I'm doing or understand the verbiage/terms. Is there a detailed video somewhere that I can watch someone explain how to properly use game analysis and the different terms/features? Also - the chess openings section used to be videos I believe and now when I click on it it opens a challenge of sorts but no actual video of the basics of the actual opening. Any advice/guidance would be greatly appreciated. Thank you!!!

https://support.chess.com/en/articles/8583757-how-do-i-use-game-analysis

https://support.chess.com/en/articles/8584089-how-does-game-review-work

There's a video in that first link. The chess.com and Chesscom Support YouTube channels have some additional videos.

Regarding your last point, if you're on the Android app, if you start the challenge there will be a video icon on the page to watch it