I was beating my head on Friday because of this very issue.
Glad to know I am not alone.
Hopefully this gets fixed so it's a better user experience knowing when q&a come from the business owner.
Different related topic, but I noticed that a question I posted received a response...
You definitely want to make sure the title tag & meta description are different for every page.
As far as ranking's, your question could have a plethora of answers. Do you have access to both Analytics & Search Console? Have you audited the backlinks? Audited the entire website...
We have a client based in QC, and their address uses Rue, both on GMB & the website. I would double check the backend in GMB and if still having an issue to reach out to GMB support to fix it.
Looks like you discussed this 3 years ago?
Solved: My Business Locations - What are labels for and what are the rules? - The Google Advertiser Community - 492055
I never listen to any advice they give, because as others have mentioned, it's usually incorrect or not useful advice.