@ASCII, IMO the wireless details FritzBOXes show are mostly just eye-candy to impress their owners.

For example, if the AP or a client supports 802.11n, it must support WMM and WPA2, which are required by the standard. No WMM or no WPA2 means no 802.11n either, not to speak of 802.11ac. Thus it is redundant info as is the WiFi MCS speed index or the number of spatial streams shown by the FritzBOX (MCS 15 and 2x2 MIMO is also required by the ac standard).

So, seven informations shown in your screenshot can be reduced to only one: the WiFi mode.

For optional features such as 802.11k/v they are negotiated by the devices. If your AP supports it, turn it on. It's that easy.

For real diagnostics, you would need to analyze the WiFi frames.

For the WiFi mode settings such as a/b/g/n/ac you quickly see whether they are supported by clients or not: either the device works with the AP or it doesn't. An AP in public space such as a WLAN hotspot should offer all WiFi modes for backward compatibility with very old clients (b, g, a modes), while an AP in a home network can restrict the mode to n (2.4 GHz) or even ac (5 GHz) only. What's more g mode is a fall-back in n mode, you can't even disable it for 2.4 GHz.

Please let us not overload Omada controller with SOHO features which are mostly there to impress non-technical people like it is done by HiFi music gear manufacturers since decades to praise their products over others.

What I support from your proposal is the feature to show/hide columns of the EAP listing and the client statistics. Also, a more compressed HTML layout would be beneficial.

All this IMO = in my opinion.