I live next door to a landscape gardener who loves his mechanical gardening tools. You name it, he has one. All high powered top of the range petrol models. Ride on tractor, pressure washer, leaf blower, hedge cutters, chain saw.
He does tend his own large garden mostly at weekends and evening, but DH and I just give a smile and think he’s at it again with his boys toys.
His garden is well kept, he’s an excellent neighbour so the noise is really not a big issue. Maintenance has to happen sometime. Just let it go.