I mounted a point-to-point link in a tree at either end.
1. Trees sway. It did matter for the PtP link in my case.
2. Installation and maintenance took time and it was dangerous.
3. Leaves and branches grow. Obstruction and misalignment over time were problems.
Advantages: it did work, and it was cheap and fun to do. I probably could not have installed a tall enough mast (too ugly to be accepted).
https://asadotzler.com/2021/03/13/starlink-tree-mount/