Do some grocery stores like Walmart will deliver fresh foods like produce, dairy, meat's, etc to your house if order online?

Ordering groceries by phone and having them delivered is a custom that goes way back,  perhaps as far as the telephone itself!  And grocery stores in small towns were much more likely to do this, in your great grandma's day, than in cities.

At the beginning of the Internet age there were several companies that delivered groceries ordered on the Net.  They were not the stores themselves but big companies with an enormous investment in trucks!   For some reason they all failed.  Apparently delivering groceries for low (or no) extra cost turned out not to be a profitable idea.

You might still find a little mom-and-pop grocery store in your small town that will deliver groceries.  They will always ask 'Are you going to be home in an hour' or 'At five o'clock' or whatever.  But 'grocery stores' hardly exist anymore.  They've been run out of business by big supermarkets (and Walmart) whose business models don't allow service like that.

i think they might do that

There are companies like "Instacart" that make home deliveries in some areas. You pick a time range for them to deliver as someone must be home.

Some Walmarts are now delivering groceries for a fee

(my local Walmart does, just started within the last year)

to a limited area (they typically don't deliver very far from the store)

but there are many that do not yet deliver.

I know stop and shop and shoprite delivers--I've never seen a Walmart that does! the do pick up --and so does Hannaford.

In my area, the Walmart gives me the choice of either picking up at the store or delivering to my house.

I've never seen a walmart deliver but other grocery stores do