Google's I/O 2019 event saw announcements for plans to bring Chrome's Incognito Mode to mobile services such as Search. This is now reportedly in testing for Maps. It is accessed by tapping the avatar associated with a Google account within this app.
https://www.notebookcheck.net/Incognito-Mode-is-coming-to-Google-Maps-on-phones.435006.0.html
Finally can go get some hos without my wife knowing...