My first K-drama was "I am Not a Robot" late 2019.
Although I liked it very much, it didn't get me hooked on K-dramas. However, it made me aware of their quality, and I started to watch one every few months.
I started to really get into K-drama after "Squid Game", and that continued into 2022, but when we started this year I watched "My Mister", which is one of the best shows I have ever seen in my life (almost 50) in any language. Since then I switched to K-drama, and watched only one American show this year.
American shows completely lost me with their open ended multi-seasons format. You start an American show, and you don't know whether it will end after one year or after 10, or maybe you never get an end at all and get cancelled in the middle.