The main difference between foreign patents and domestic patents in the target country lies in the protection period, content and application content in the patent laws of the two places; Moreover, because of the geographical restrictions of patents, the scope of protection is different.
If you want to apply for a foreign trademark, it depends on which market your goods will enter. For example, if you want to enter the Korean market, or if you want to apply for a Korean e-commerce platform, then you have to apply for a Korean patent, both online and offline.