Here is a look at the xG stats from Man City vs Leipzig in the Champions League on 15 September, 2021. Both teams overperformed on xG, especially Leipzig, who scored three goals, but had a cumulative expected goals metric of just around 1. City had one penalty and one own goal in their six for the game
xG Man City 3.41-1.01 Leipzig shots map (Actual score MCFC 6-3 RBL)
1-0 Ake goal xG 0.46
2-0 Mukiele own goal no xG
2-1 Nkunku first goal xG 0.12
3-1 Mahrez penalty goal xG 0.75
3-2 Nkunku second goal xG 0.35
4-2 Grealish goal xG 0.07
4-3 Nkunku hat trick goal xG 0.33
5-2 Cancelo goal xG 0.02
6-2 Jesus goal xG 0.61
Full time post match stats MCFC vs Leipzig 6-3 for comparison