Hello Andrew,
I am pleasantly surprised by the aspiration of Apple’s Maps team to participate in the project to improve the road network in Ukraine. I hope that the cooperation between the community in Ukraine and the Apple’s Maps will lead to a good result.
At the moment, the Ukrainian community has been using a variety of tools for assessing the quality of data about the state of the road network. One of these is https://pavlo-dudka.github.io/osm-pg-tests/. Despite it nerdy look, it helps to spot some problems in the data in nearly online mode. It would be good to get support from your team to improve its appearance and, if possible, provide computing power to speed up data processing. Most recent updates of its source code you may find here - https://github.com/pavlo-dudka/osm-pg-tests/tree/shell-version-for-windows