XC60 Front tyres unevenly worn …

Dear forum, with my XC60, the front tyres are approaching the end of their legal condition. Here in AT are the 1.6 mm minimum profile depth. When parking – when the front wheels are hit – I now notice that the inside side is significantly stronger than the outside side. Delta approx.1 – 1.5 mm. Is on both sides (i.e. left and right front wheel) about the same. Now my question? Is that also so with you? Anyone noticed and talked about it? Many Dan k for your feedback P.S.: Basically this is clear to me with fall, track, follow-up etc. …