Live Chess Features Demo?

Hello folks,

If what I am asking about exists, please kindly point me in the right direction. I wish Chess.com had tutorial video that introduces player's the Live Chess features and outlined the kind of adjustments that are possible. By chance, I learned from another player that the Live Chess settings can be adjusted to limit or increase the quality/rating of opponents. This seems helpful so that a person can set a challenge level to his or her level of comfort. I also learned there several more settings that can be manipulated to improve the game experience.  For example, you can set a confirmation for resignation, which I think is a good idea. Also, there's a premove option, which helps explain how people move so fast in the blitz games. Again, this would be good to know upon joining. Lastly, on another forum, I learned that my desktop can also utilize a move confirmation button, like my Ipad, which I find very useful, as it is easy to make a mistake with the mouse. Here's the link: https://www.google.com/chrome/?brand=GGRF&utm_source=google.com&utm_medium=material-callout&utm_campaign=cws&utm_keyword=GGRF

As a someone who played few games as guest, I never thought to look for such features.

Best