"Connect to any Carrier later"

That statement means that the iPhone will not be locked to a specific carrier. So technically yes, you could use it with any carrier that it's compatible with (carriers can differ from country to country in support). But I concur with sberman; it's highly recommended that you buy your iPhone in the country where you live, even if it would work with your local carriers. Otherwise you face the very possible risk of not being able to get service should it be needed.

Regards.

The iPhone version sold in the U.S. does not use any kind of physical SIM card. It is eSIM only. The carrier that you want to use in the country in which the phone will be used may not offer eSIM capability.

Please remember that an iPhone should be purchased in the country in which it will be used most of the time.

You will avoid a number of potential problems this way.....even if the cost might be higher.

Ask Apple itself once the phone is unlocked u should be able to use it in your country with an SIM card don’t take advice from people in the discussion because u ask one question they’re giving u answers for something else

Do not purchase an iPhone outside your home country. There are many reasons for this, including the iPhone warranty not being valid, and the lack of accepting a SIM card.