Can someone explain Sk Hynix US listing to me?

I'm fairly new to investing, do a lot of reading here on reddit but want to make sure I don't do a massive mistake. I obviously don't know much yet but working on it.

I live in Germany and can (did) buy Sk hynix stock. I'm using Scalable Capital App.

To my understanding US has to buy the Korean version currently with a foreign app or whatever to invest into Sk Hynix.

Sk is now coming to the US Market which enables institutes and ETF's to also buy Sk as they are otherwise not allowed to dip into foreign markets.

My big question: My European one is linked to the Korean one.. so if the Korean versions moves, so does my Europe one and vice versa? Currently it's like 1550€.

Does this mean when the US gets its listing.. it will be about 1700$? Are we all tied together? So when Americans and institutions and American ETF's can purchase the US stock, my European one should rise or fall aswell?

And if that what I wrote is correct, then it should be a no brainer for me to stock up on SK as I have access to it now already.

Not looking for financial advise to buy or not to buy! Just trying to understand how this works. I don't want to lose money because I didnt understand how it works and the US version ends up being it's own Stock for example.

Thanks to anyone who takes their time for this, I appreciate it.