Having worked as a mover for a while once upon a time, I don't think it would make much difference as it is now. It's very rare for any moving job to require more physical strength than an average adult male has. The challenge is more like understanding how to handle items without damaging them or the building, what order to move things in so that a truck can be packed well. We'll need a lot more real-world intelligence from robots before they can do something like that.

Unusual physical strength, or powered mechanical aids, are mostly only used with unusual items. Ex, most "gunsafes" are more properly Residential Security Containers, and aren't all that heavy (~200lbs) and can be moved around, including up stairs, by two average adults. Real safes weigh more like 600lbs and are much more rare, partly due to the difficulty and expense involved in moving them anywhere remotely tricky. I have heard of powered stair climbers being used to lift such things up a flight of stairs.

Looks like they are working on a relaunch (re-relaunch?)

https://mobiusmobility.com/

I think unfortunately the main reason the iBot did not originally succeed is that it was too expensive.

Maybe. Maybe not. But the real question is whether people in 10 years time would prefer a walking mobility scooter or a wheeled mobility scooter. When the Star Wars generation hits this point en-mass in 20-30 years, I predict there will be a huge market for personal AT-AT walkers.

Don't know.

But maybe it would

1. allow them to stand

2. allow them to use stairs