Comments on https://lichess.org/@/circlechessteam/blog/what-is-my-elo-rating-in-chess-and-how-to-find-it/CFst9NCY
Just a note to say that the expected score is not based on the opponent score but on the ratting difference between the two players playing the game.
The expected score table, based on ratting differences, can be found at https://handbook.fide.com/chapter/B022024.
Also neither Lichess or Chess.com use the Elo ratting system. They both use the Glicko rating system.