Buying an iPhone in US and use it in Europe with a local carrier

Hi!

I can’t find a clear answer on this topic anywhere, so I’m hoping you can help me:

If I buy a new iPhone in the US, will it work with a Europe carrier?

I’ve learned there are different models of iPhones, that work with different band widths (as is shown here iPhone - Supported 5G and LTE networks - Apple ) - which makes it look like you can’t buy a US phone and use it in Europe (since they’re different model numbers), but then again some people say you just have to make sure the iPhone is unlocked and it will work with Europe carriers without any issues…

I’m hoping someone can clear this up for me - can I buy an unlocked iPhone 14 pro in an Apple store in US and then use it in Europe, with a local carrier, or will there be a problem cause it’s not the right model?

(oh and just a tiny sub-question:

https://www.techwalls.com/iphone-14-pro-model-number-a2650-a2889-a2890-a2892-a2891-differences/

here it says the US iPhone model no longer has a physical SIM opening - so if my carrier only supports physical SIM, i shouldn’t buy the phone in US? Or is it possible to just buy a different model in the US?

Thank you so much for your time and answers in advance.