How does unity itself comply with the LGPL if it uses LGPL code? The blog post also says all games made with Unity depend on LGPL code. How do they comply? I'

How does unity itself comply with the LGPL if it uses LGPL code? The blog post also says all games made with Unity depend on LGPL code. How do they comply? I'm so glad I generally don't have to think about this kind of stuff day to day.