My mom wants an electric lawn mower. Any reccomendations?

We actually have a 60's-early 70's corded electric mower.
It's our emergency mower.

I did notice after a walk through of the offerings at Lowes, that the controls were different on almost every unit, even of the same brand.

I also noticed that you pay a $100 premium for "uneven terrain" vs "flat terrain" capabilty.
On some, this means "high" rear wheels. On a few, I could see no difference.

I did not look at the blades.
Are they "standard" metal, plastic, or are some string?
When I was a kid, we had two old maid sisters and their ancient mama living next door. They were some of the nicest folks you'd ever hope to have as neighbors. After their mama died, They'd invite me over once a week to play cards. Mostly a friendly game of poker. They tried really hard to teach my dumbass gin rummy, but there was no hope. So we played poker, blackjack and go fish. lol They taught me a lot about life and growing up and at a time when I needed it with mama sick with cancer and daddy takin care of her. Anyway, after that long drawn out bit......they had a corded electric mower. I remember it well. It was very quiet and did a good job. They had several places in the cord where they had repaired it from running over it. lol But it still did a fine job. I always thought it was cool.