The damage was done by whomever touched it (washed with sh!t technique).
Black paint shows everything. The gold fleck in the mosaic black metallic will hide a bit of dust, but not for long and certainly not swirls.
Professional paint correction and self-healing PPF (ideally with a durable hydrophobic on top) is the only practical way to fix it and keep it swirl-free for a long time.
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