SE 2022 Charging Port Available?

I'm not clear as to whether you were set on getting a genuine Apple replacement part or not, but if not the ports seem to be readily available on several sites such as Amazon, eBay and AliExpress.

Amazon.com: Risidamoy Dock Connector Charging Port Replacement for iPhone SE 3rd Generation 2022 Repair Fix USB Charge Headphone Jack Microphone Antenna Flex Cable Assembly for iPhone SE 2022 : Cell Phones & Accessories

AiinAnt USB Charging Port Charger Dock Connector Charging Flex Cable For iPhone 6 6s Plus 5S SE 2020 2022 Phone Repair Parts - AliExpress

iPhone SE 2022 Charging Port Flex Red - eBay

Note that last one is in red; it's strictly cosmetic though so it would work fine; of course if you look a bit harder than I did you'll undoubtedly find the right color for your phone.

Finally if for some reason you are dead set on a genuine Apple part, I did run across a used one on eBay.

Charging Port For iPhone SE 3 2022 - 3rd Gen Dock Connector Flex Cable in Black - eBay

All in all, the charging port for your phone doesn't appear to be any harder to get than that of any other given phone.

I realize you're probably aware of this already, but here's the guide for that specific repair on your phone.

iPhone SE 2022 Lightning Connector Assembly Replacement - iFixit Repair Guide