Here is a look at the xG stats from Celta Vigo vs Barca (November 6, 2021). Celta came from 3-0 down to draw 3-3 with Barcelona, with Iago Aspas again proving to be a thorn for the Blaugrana. Celta had more possession than Barca and had more shots, and also had the better quality of chances on the expected goals metric.
xG Celta 1.97-0.97 Barcelona shots map (Actual score Celta 3-3 Barca)

0-1 Fati goal xG 0.04
0-2 Busquets goal xG 0.05