If healthy he definitely can hit 40 regularly, with good chemistry challenge for 50, but probably will keep struggling with missed games as before which makes 30 more realistic.
Patrik has had 5 seasons in a row where he hasn’t hit 30 goals. He doesn’t tend to stay healthy and he doesn’t shoot the puck enough to get 40 goals unless he has an outlier season where his shooting % elevates (like his career year when he was 19 and shot over 18%)
Let’s pretend for a second he could play 82 games this upcoming season. If you look at his body of work Patrik has played 480 regular season games in the NHL, he has generated 1390 shots, so he averages 2.89 shots per game. His career shooting % is 14.9 so If Patrik plays 82 games in Montreal he will get about 34 goals if he follows career norms.
If you look at Cole Caufield last season he was able to generate 3.8 shots per game which is impressive he was just snake bitten and had a dismal career low 8.9% shooting rate compared to a career high 16.5% the year before. Caufield does generate more shots than Laine does per game though and the margin is material.
Ovi is the gold standard for goal scoring and it’s because of two major factors. His phenomenal health (longevity) and his ability to generate shots on net. His 12.9 shooting % is pedestrian at best for an elite goal scorer but dam man he has been able to generate 4.64 shots per game (6627), over 1426 career regular season games.
TLDR summary: Patrik has never been a high volume shot taker for a goal scorer and I doubt that is going to change.