As per my knowledge these are powerful punch packed smartphone. With 5G support and Latest Exynos Chipset. So only latest A series have access to it. I bought my A13 on July 2022. It also doesn't support it due to hardware limitations
Its better recommend you buy Indian Version of smartphone.Because there are major difference in them like.1. Different Chipset2. Difference in Model Number3. Difference in Performance of device.As far if you still buy International Version then it's ...
As they have high end speciations. They are capable for those features. But don't forget that they are limited to Android 11 only. So on other hand you are one step ahead.
As you have an Korean Version of Note 10 Plus. So it will not be available. Because the Samsung Korea had not ofcourse made their software to support Indian Sim. And they will not support Indian Sim in future also most probably.