Considering mowing and plowing with Rancher 420. Bad idea?

I have a new-to-me 2006 Rancher 420, and am considering using it to mow grass and plow snow.

I see other people do this with their ATVs, but others say to shouldn’t because they aren’t designed for low-speed, high torque work; and the trans will burn out.

Any opinions? Would love to hear from people who do this on a regular basis with something similar.