"I have the same question (113)"
The Google My Business help section is a similar graveyard with people wailing for help but not a single actual Google employee there to be of assistance. That is, unless your thread gets some insane amount of traction but also at risk of being locked
You can find random employees on LinkedIn and email them and they'll respond but it won't go anywhere.
All you need to do is subscribe to Google One for a nominal annual fee. I've found it pays off easily, and I'll be renewing again.
I am sure that if you subscribe to Google Workspaces for Business/Enterprise that they will be responsive in that regard.
And it's not just GMB. There are other products that Google just refuses to support in any meaningful way yet are definitely end user. Less consumer, but still end user. One example, Google Analytics. There's GA360 with 24/7 support, but it's $150k/yr. GA360 is also the only way to download historical GA data after a year or so (last time I checked?). Another example, Google Data Studio. which is now... Looker? I guess? What a clusterfuck that was. It and Firebase were so glitchy and lost so much of our analytics. Once I finally got it into BigQuery and then into DataStudio, which I spent way more time on that it should've they wanted to charge us up the ass to continue doing it. So I was told to turn it off.
edit Apparently by asking a 2nd time. https://news.ycombinator.com/item?id=37041047#37042474
If your desire increases, Google deletes it. That's a new level of microcontrol.