all strut mounts have bearings in them, the rubber is vulcanized to the bearing case to keep it in place. Good quality strut mounts have a good quality bearing and its built spacer to no clearance and good solid rubber to keep it in alignment, cheap $shitty mounts have loose fitting stuff which causes the bearing to take axial load and squishy rubber - which then fails. Takes the camber and caster out of spec too.
No mcpherson strut + spring design can operate on squishing around in rubber. The bearing is what makes the struts rotate. Your hubs are fastened to the struts - they need to rotate when you turn the wheel.
btw removing the struts and their hat mounts is pretty easy for a shop who has spring compressors and basic metric sized hand tools. Takes about 1 hour