I see a lot of posts about defoliation. I’ve seen pics that make me shake my head. Each leaf is like a single solar panel because it is. If you were in a solar powered aircraft (there’s one that circled the earth) would you want a single panel removed? When light is weak then selectively. Very selectively. It’s better to chop your tops and lower your light if you have the time.
If you do decide to defoliate start with just the tough huge fan leaves. The oldest ones. Definitely don’t get aggressive. I’ve done it.