A bit of additional information about Nintendo Switch 2 has come to light, seemingly confirming that NFC and Wi-Fi 6 will be included.
The Verge spotted new filings with the FCC today. Based on what was published, NFC and Wi-Fi 6 will be included with Nintendo Switch 2. Wi-Fi 6 (802.11ax) networks are supported with up to 80MHz of bandwidth, compared to Wi-Fi 5 (802.11ac) on the original Nintendo Switch. Note that Wi-Fi 7 and Wi-Fi 6E are not included. Additionally, tests with the FCC were only done for 2.4GHz and 5GHz networks instead of the faster / shorter-range 6GHz band.
Source: Nintendo Switch 2 appears to have NFC and Wi-Fi 6