I can’t update because it says you’re not connected to internet even though I am!

To update all of these requirements must be met:

• You need at least 6 GB of free storage
• You must be connected to a Wi-Fi network (and not a personal hotspot) unless it is an iPhone 12 or 13 series with an active 5G network connection
• The phone must be charged to at least 50%, and preferably plugged in so it stays above 50% during the update
• The phone must not be in Low Power Mode
• The phone must not be connected through VPN
• The phone cannot be in Airplane mode

I did all of this and still not updated

Do you have any VPN apps on your phone, even if VPN is off? Do you have a SIM card in the phone?