Totally agree @vult46
There is another thread on the forum about this that discusses all the extra steps a person has to take to use the 2nd sim. The whole point is to make functionality and usage as seamless as possible.
I'd certainly advocate sending your feedback via the Samsung Members app.
Current Phone ~
Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+
Samsung One Ui 3.1/ Android 11.