My dad always insisted on mowing every 4 days though.
Sydney for example has a higher annual rainfall than places that Americans consider rainy (eg. Seattle). Combine that with warmer temperatures and in many parts of Australia you are fighting a potential jungle more than fighting desertification.
Canberra, the capital, on the other hand regularly gets below freezing which means less mowing required.
a surprising amount of the US gets more rainfall than Seattle
https://www.bloomberg.com/news/articles/2015-03-17/this-simp...
There are a lot of things you can do to help bee populations. I can't imagine how you mow the lawn is that large of a factor considering the other things you can do.
Seriously considering landscaping to not need to do this. Wife and I have thought to turn the whole front and back yard into other greenery.
Bear in mind this is a 5 acre lot that is 4/5 forest or water- definitely not a stereotypical suburban uniform green carpet. No pesticides or fertilizers used at all either.