I had two foot surgeries in 2020 and found that the service varied quite a bit by airport.

At PDX (where I normally originate), I was met at the check in desk and taken to my gate (or the Delta Sky Club, if I was early). I didn't need help getting to my seat on the plane, I just couldn't walk long distances. Coming home, I would be picked up at the bottom of the jet bridge, taken to baggage claim, and then wheeled out to the curb to wait for my ride.

Service was similar at SEA and SLC for connections, they would take me to the Sky Club and drop me off, and then pick me up and take me to the gate.

LAX was a cluster. Came in on a bus gate. No help getting down the stairs or on the bus. No one waiting where the bus stops at the terminal. Had to find my own way to the escalator and upstairs - where I finally see a chair pusher holding a sign with my name. I was so annoyed, I just kept on hobbling...

At ATL they picked me up at the jet bridge and took me to baggage claim, and then just left me there. Had to get myself over to the train to the rental car center (honestly not sure what I was expecting, but it sure was a pain to schlep my bags while hobbling on a walking boot).

At MSP they had a chair take me up to the gate, and then shifted me to one of the golf carts to my next gate.

So, mixed bag.

I feel like the best bet is to confirm expectations with the chair pusher before you even start moving.