organic maps is built on open maps and is FOSS. Takes some getting used to though. The time estimates aren’t accurate (it doesn’t account for traffic) so always add time to the estimate, and you can’t really search for things by name you generally need to input addresses (except for maybe your airport. This also varies based on where you live because folks might be updating it more for you locally).
Basically it’s a solid option but not good enough for me to ditch Apple maps completely (I trust apple slightly more than gmaps but not by a large margin lol).
My wife and I having the same debate. Do what is best for your family.