Is this true? If so how do I get the right calibration for my Samsung g6?

I read that it doesn’t matter how others view your image because everyone’s device is different. As long as your computers calibrated correctly then it’s up to the viewer to get their colors correct? I’m editing photos and exporting them to my phone and just realized the greens and the blues don’t match. I’m exporting the files in the correct color it’s only that when it gets to my phone the color changes. Can someone please help me. Calibrate my Samsung G6 to match my iPhone 15 max