Is it offside if a striker receives the ball behind all defenders and goalkeeper of the opponent?

You are correct in your reading of the laws. The offside line is at the second-to-last defender without regard to whether one of them is a goalkeeper or not. The player circled red is also where the offside line should be marked and judged.

At the moment of the screen capture, the attacking player on the far side by the goalpost is clearly in an offside position. If they play the ball or influence play, they also commit an offside offence.

However, it is unclear how close the attacking player on the near side, very close to the line, would be to an offside position. This is due to a combination of perspective and graphical inaccuracy and still capture eliminating knowledge of movement. Only someone flat with the circled defender would have sufficient perspective to make this decision.

For me personally, they appear to be not offside at this exact moment, but they may have moved enough to be made offside prior to the screen capture.

I understand this interpretation and I quite agree that it's an offside considering the fact that the last Chelsea defender in the picture substitute for the goalkeeper on the goal line and there by should not be used to judge the offside line because usually, the goalkeeper is in most cases in his goalpost when offsides are called. So the offside line is judged by the second defender who is also behind the keeper.