I felt he could have come for the cross and made a better attempt for goal 3.
What is Post-Shot xG (PSxG)?
Regular xG, or what can be considered "Pre-Shot xG", is calculated considering all shots at the time of the shot without knowing the quality of the shot attempt. It not only includes shots that are on target, but also shots that are deflected or off target. Post-Shot xG is calculated after the shot has been taken, once it is known that the shot is on-target, taking into account the quality of the shot. As with xG, PSxG is provided by Opta and is further explained here.
All shots which are off target will have a PSxG of zero since there is a 0% chance that this trajectory will lead to a goal.
When evaluating a goalkeeper's shot stopping ability, we only want to include shots that are on target since these are the shots where the goalkeeper can have an impact. Therefore, we use PSxG to estimate the quality of shots in which they have faced.