You may have noticed sometimes that some sidewalks have holes, or slabs, on which there should be trees, but there are no trees themselves. This was not always the case, as an example I can show one such place where there was a tree starting from the early beta, later this tree appears in the late beta, but in a different form, and in the final this tree is missing.
The reasons for the removal could be different, for example, they affected performance, or they were simply accidentally removed, like a couple of trees on Hove Beach in TBoGT.
In short, here is a map with the places where trees have been restored.
White dots with a red outline indicate the specific location where the tree was restored, and stripes indicate that the entire area has been changed, the Steinway park has undergone major changes.