Sensibility Height strike in the rim?

When changing tyres one of my rims was found to be high and they told me the rim could not be balanced out. After that I was with the bike at the next workshop and saw them running there also on the force machine. The rim has a height of almost 1cm and the workshop employee said I could forget the rim. After that third workshop (contract workshop) did all 4 wheels again and could not detect any error (so correctly has but I don’t think I understood my concern there). Well, since the wheels were all balanced, I just mounted them to test if I notice anything. First the rim mounted with blow at the rear right, then again at the front left. In both cases, I actually didn’t notice anything and I drove up to 250km/h. From 200km/h it gets a bit restless, which in my opinion is normal. But no vibrations in the steering wheel or similar. How can it be that I t t Shouldn’t the car have to vibrate like crazy? I still have a bad feeling and still wonder if I am replacing the rim. The vehicle is a Golf 7 R and tyres in the size 235/35 R19 (Michelin Pilot Sport 4S) at 2.6 bar air pressure. (Yes, this is actually the continuation of another thread, which I didn’t want to bring out again).