I have just bought the above only to find out that it doesn't support multiple Public IP addresses.  I have Fibre to the Premises and  4 public static IP addresss

No problem with this and my current router a Draytek 2860 which is 5/6 years old now and only a throughput of 300mbps (I should have 700mbps) and so I purchased a complete TP-Link system with Wi-Fi 6 routers and Three Omada Switches and this router.  All installed except the Router as it now turns out the Router doesn't support multiple public IP addresses. (Still using the Draytek)

Surely this must be a big mistake for what is meant to be a Business system - My installation is only a Home Office solution (OK a larger Home/Office installation)

Below is a screenshot from the Draytek Router as you can see you can from this you can configure the static IP address within the Port Redirection but there appears to be no way of implementing this with the TL-R605 or any alternative TP-Link router

I have 5 TP-Link AP's and 3 Omada Switches and this Router

Looks like I've wasted a lot of time and money with TP-Link  - Unless I've missed something but I don't think so