Q: loud hum coming from the front tires when driving on highway

I am hearing a loud hum coming from the front tires when driving on highway at 70mph (speed limit in Texas) If you turn the wheels slightly the hum will go away. --- but then you are drifting toward the neighboring lane. the hum is not noticeable at low speeds.

I am concerned one of the tires is rubbing on something creating a hum.and maybe causing wear on the tire in a place that could cause a blow out.

my car has 90000.
The car had at brake job on the front end in May.. The sound did not start until after that brake job.( maybe a few weeks later - 1000 or less.).

I also noticed more brake dust on the front drivers side wheel than any of the other wheels. so I took the car to the dealership. I had a call today that the caliper is stuck on that front driver side wheel? and they are working to fix it.

I am not sure that would cause the loud hum. but a stuck caliper must be repaired.

Is there a part of the caliper that would rub on the tire to create a hum? I am just not sure of the mechanics of this situation.

Any other Ideas on the hum? I don't want to have a blow out driving on a highway with a 70mph speed limit