According to a Brazilian blog, Motorola has started to update its Moto G7 Plus to the latest version of Android. It adds the new kind of navigation controls, a dark mode and December 2019 security patches to this phone. So far, its roll-out appears to be slow, although it may be complete within a month or so.
https://www.notebookcheck.net/The-Moto-G7-Plus-starts-updating-to-Android-10.451203.0.html