Dual SIM slot

All iPhone 14 models support dual SIMS.

The iPhone 14 models sold in the U.S. support 2 e-SIMS (no physical SIM slot). Those sold outside the U.S. support one physical SIM and one e-SIm.

Previous phones sold in China, Hong Kong & Macau supported two physical SIMs but I'm not sure about the iPhone 14 models.

Also see: Using Dual SIM with an eSIM - Apple Support

Using Dual SIM with two nano-SIM cards - Apple Support

About eSIM on iPhone - Apple Support

and

Use eSIM while traveling internationally with your iPhone - Apple Support

Models sold in China, Hong Kong and Macau will have dual Nano SIM slots.

Other regions will have one eSIM and one Nano SIM slot, except in the US where models will have dual eSIM capability.

Only iPhones, designed to work in China mainland, Hong Kong, and Macao, come with dual physical SIM slots.

iPhone 14 models sold in the U.K. have one physical SIM slot and e-SIM.

You are welcome.