Vela Maps is an open-source, degoogled alternative to Google Maps for Android.
It uses OpenStreetMap and other open data for maps and places, supports offline maps, turn-by-turn navigation, public transit and live traffic, and doesn’t require Google Play Services or a Google account.
It can also run with Google completely disabled for a fully offline/degoogled experience.
More Details & Alternatives: https://digitalescapetools.com/tools/velamaps.html
Tried it out while running it through pcapdroid. Still a lot of connections to Google, Google play, and gstatic. So I can’t say it’s totally degoogled, but it’s a start.