I bought a Netgear Access Point (WiFi 6 AX1800 POe) AND NEED TO SET IT UP BUT THE INSTRUCTIONS ARE T

You gave us nothing to go off.
AX1800 is not a model #...

There's a support site with access to manuals, firmware, install guides, etc.
Go to https://www.netgear.com/support/
Type in your model number and from there it'll take you to the above.
Its a great resource to start with.