We really have to stop acting like gas is free and unlimited, burning fossil fuels used for legitimate reasons is bad enough, but burning them for such dumb tasks is an insult to nature.
I can hear leaf blowers constantly though because you can hear them in a quarter mile radius.
Also local ordinances in most places ban loud noises without a permit. But lawn maintenance equipment is a specific exception.
You paid for half a dozen people to spend a bit of labor on what would have 50yr ago been a simple "sidewalk for walking go here, grass everywhere else" exercise. And then every week you get to pay again to be annoyed by them maintaining it (in perpetuity, as they are required to by law, assuming it's part of a SWPP).