I don’t know if this is the right place to ask but I couldn’t find a better
About one year ago I could get into my google maps and answer questions for example if the store is wheelchair accessible but even though I think the setting allow google to track me and do whatever they want I can’t answer these kind of questions since a while.I tried it on my iPhone and on the Mac with safari and chrome.
You can now get the questions on your iPhone, also. Though I didn’t try that on an iPhone, I could get questions to answer on an iPad.
However, you will not get that in the Maps app.
You need searching for the POI in Google Chrome. There, you will find a feature similar to Maps which enables one to add reviews and photos directly through the browser.
Nevertheless, you need to keep the timeline feature active and Maps must have questions ready for you.
As mentioned above this feature is now available for Android and Desktop. More about it you may find in the Ask and answer questions about a place article.