First thing that comes to mind is: Use the internal bus system to get around *inside* the Resort.
It can be a bit of a learning curve, but we see that same type of system at other large Resorts at Disney (thinking here of Fort Wilderness, Port Orleans Riverside internal shuttle typically loops over to Port Orleans French Quarter also, and other larger Resorts have similar internal shuttle systems).
If you start looking, there are actually lots of internal shuttle systems at the Resort hotels at WDW!
You can also request a room that is closer to the main building, so that there is less travel to get to food services and/or bus stops. Call WDW’s main reservation number, and ask them to make a note on your reservation.
You can stay at a Resort hotel that has a single building - like Wilderness Lodge, Contemporary, Yacht Club, Beach Club, Swan or Dolphin.
You may need to consider adding a form of accommodation to your trip - many people use a
scooter while at Disney World who never use a device like that at home. It’s because the average Guest at Disney World will walk between 3 & 10 miles *per day*, and most folks don’t walk that much at home.
You may also want to consider staying offsite - you could start by looking at some of the Disney Springs hotels for example. Flamingo Crossings has many hotels that have been built in the last few years, and have a smaller overall footprint.