They make them to fit your height, weight, and arm length. Pretty snazzy to own a bespoke scythe. They even make them for southpaws.
Scythe Supply.
They have good choices of blades and accessories too, some for brush and saplings. (h/t, reader)
I don't know whether I would have the time or energy to scythe the 8-acre brushy hillside meadow which sits above the bridge, but it would be good for some areas that we can't get the brushwacker into due to slope or boulders.
One of my grandpas, a capitalist industrialist who hated paperwork and hated business, loved nothing more than a weekend day scything at the farm until the sacred cocktail hour. Then Dewar's on the rocks, well-deserved. Usually two of them; one for the blood and one to stimulate the appetite along with Pall Mall cigarettes or a Habanos ceegar. He taught my Mom how to use a scythe, and she taught me. We still have his pedal-powered grinding wheel in the barn with the water pan.
Nonetheless, I enjoy a gas-powered brushwacker. It's a good workout just to muscle that heavy machine around, and it shreds everything to bits, even 2" saplings. Leaves no swaths of cuttings to suffocate the grasses.