What causes HP printer WPS connection failure on modern Wi-Fi?

https://123hp-setup-com.us/blog/hp-printer-wps-connection-failed/

Modern Wi-Fi routers often cause HP printer WPS connection failures due to disabled WPS by default, 5 GHz band incompatibility (most printers require 2.4 GHz), or WPA3 security settings unsupported by older firmware. Additionally, router firewalls, MAC filtering, distance, or a 2-minute WPS button timeout can block the connection before setup completes.