After some hours, days of review/research the winner is Xiaomi Mi Note 10 Lite
My current Sony Xperia XZ 2 https://www.gsmarena.com/sony_xperia_xz2-9081.php was great during 2 years of usage, but instead having IP68 https://en.wikipedia.org/wiki/IP_Code the Rotate a Brightness adaptation doesn’t work anymore 😦
My research candidates were OnePlus 7T (great HW and UI), Nokia 7.2 (due Android One participation) and Pixel 4
OnePlus folded due still high price, Nokia, because of the UI of bottom navigation and Google Pixel 4 is too expensive for the included hardware.
So Xiaomi became the winner due hardware, but also due previous good experience. My son inherited the Xiaomi Redmi 4A https://www.gsmarena.com/xiaomi_redmi_4a-8420.php from me and after his “caring” usage (5 year old) the phone still works (also the adaptive brightness and rotate)
Hope that Android Auto will work properly.