iPhone 11 Pro Are all iPhone 11 Pro Models essentially Factory Unlocked?

[Benz63amg]

What I’m saying is, Does it matter which Carrier model i preorder tomorrow morning or are they all Factory Unlocked Models? I ask because I recall last year I got screwed when preordering as I picked the AT&T model when preorders went live and it asked me to login to my att account during the checkout process which made me lose precious minutes in the checkout process and then I found out that if I was to pick the T Mobile version during checkout instead of AT&T then it would have never asked me to login to any carrier site and would have just let me check out and I would have gotten the same phone

I will be paying full price for the phone,

I’d like some clarification on this please, I have my favorite configuration favorited in the Apple Store app already but I want to know the answer to my question above, Thank you

 

[nbuubu]

Apple has an answer to this question on the iPhone 11 store page, right above the price after you’ve selected your options:

Will my new iPhone be unlocked?
Nearly all iPhone models sold on apple.com and at the Apple Store are unlocked. This means they aren’t tied to a single carrier. The exception is when you buy an iPhone with AT&T Next. It will be tied — or locked — to AT&T.

• 
  Your iPhone will be unlocked when you:
  
• Choose any carrier and select One-time payment.
• Choose any carrier and select Apple iPhone Payments.
• Choose any carrier and either join or upgrade with the Apple iPhone Upgrade Program.
• Purchase a SIM-free model. This is like any other iPhone, just without a carrier nano-SIM card.
  Your iPhone will be locked when you:
  
• Choose AT&T as your carrier and pay with AT&T Next.

I’m buying mine SIM-free so I won’t have to enter any of the carrier stuff during pre-order checkout. Also because my carrier isn’t one of the big-four.