I wouldn't be surprised if he'd been playing with it for a good length of time throughout the regular season
Looking at his numbers, he took nearly 90 fewer shots this season than last season, he only took 263, even two seasons ago he broke 300
The last time he played 75+ games and took fewer shots was him taking 240 back in 2018-2019
Yeah, he hit 100 assists and very much focused more on passing the puck this season, but I wonder if if that was partially impacted by his having a tougher time shooting the puck, I can't imagine having an abdominal injury would help shooting all that much
https://www.quanthockey.com/hockey-stats-nhl/en/profile.php?player=23497
That changed a bit come playoff time, he put up 75 shots in 26 games, but it's the playoffs