Yes. If you purchased your phone from us and will use a number from another carrier, you need to unlock it.
Customers using iPhone 14 can use Dual SIM with two active eSIMs. iPhone 13 models support Dual SIM with either two active eSIMs or a nano-SIM and an eSIM. iPhone 12 models, iPhone 11 models, iPhone XS, iPhone XS Max, and iPhone XR, support Dual SIM with a nano-SIM and an eSIM.
Learn how to set up Dual SIM on a compatible iPhone to use two lines on a single iPhone.
You can learn more about Dual SIM with an eSIM here.