Only commercial/business Wi-Fi versions of Surface Pro 11 include an NFC reader.
If you can’t find any NFC settings or an NFC option in Windows, then your unit likely doesn’t have the NFC hardware built in.
Go to Settings → Network & Internet → Airplane mode
Look for an NFC toggle — if it’s completely absent, your unit likely doesn’t have the NFC sensor installed.
Right-click Start → Device Manager
Look for an NFC category or any device named something like “NFC Controller.” Commercial units are usually marked as “Surface for Business” or “Commercial” on the box or in purchase documentation.