This is not correct. The home address can be defined in the same way as with the Tomtom and thus remains stored until all addresses are completely deleted. When deleting the addresses, you are also asked whether the home address should also be deleted. Here you still have the choice. After each outward journey via a new route, the "Home address" field can be used to return to the saved address.

Storage possible. My question has been resolved. Apparently there is no way to delete your own question.