What do you have to be aware of in this situation?

You answered everything correctly. On roads lined with trees like this, you must drive with particular care because the alternating shadow and light patches can make it difficult for other road users to see you or for you to see them. This can lead to reduced visibility and increased risk of accidents. You cannot judge distances more easily in this situation; in fact, it’s usually more difficult. Always stay alert and reduce your speed if necessary to react safely to any unexpected situations.