Speed related drumming/drone/hum can be due to tyre wear from previous misalignment and readily confused with a bearing problem. Has the garage rotated the tyres or swapped side to side?

On each tyre, run the flat of your hand over the tread, in the direction of rotation ie along the line of the tread, not across it, and see if you feel a saw tooth line of wear usually on the inner or outer shoulded, a couple of inches from the edge.

To check the bearing you will need to lift the wheels clear of the ground, then try to rock them in a north/south, and east/west direction, there should be no play or knocking as you do it . Bearing noise would generally be more evident on cornering.

It sounds to me that you need the car tracked up.