Not being mean but I enjoy the hum of a lawn mower, and surely, if your gardens are small, it shouldn't have take long, and if your gardens are large, then you should have a spot where the noise doesn't bother you!
I feel for my daughter, living in a lovely neighborhood, well, it was until all police station was shut down, and now the teens all sit behind her garden where there is a footpath that used to be pretty flowers and lead onto a field, now the teens use it to smoke their 'zoot' (going by what the daughter overhears lol) have their music playing on their phones and portable speakers, and have even taken chairs there, and as my daughters garden is tiny, all the smoke goes into her home.
Of course by the time anyone can come if she reports it, they are long gone.
We are having to adjust, its hard, but if your only problem right now is the sound of a mower, then do please count those blessings & stay safe. xxx