We have a distributed site, as I have mentioned earlier in this post For our hosting site, the web adaptor is named 'server' and the ESRI.ArcGIS.WebAdaptor.dll is dated March 1, 2023.
For our federate site, the web adaptor is named 'agsfed' and the ESRI.ArcGIS.WebAdaptor.dll is dated August 10, 2023. For the portal WA, the ESRI.ArcGIS.WebAdaptor.dll is dated August 10, 2023.
We do not run ANY map and or image and / or server extensions from the hosting site - it purely serves hosted feature layers from portal.
All of our map and image and (network, validation, versioning, geolocator) etc services are run through the agsfed WA, per our system design.
All 3 WA's, server, agsfed, portal all show the patch as applied through 'installed updates' as accessed through control panel>view installed updates.
For IIS, I don't know what multiple bindings means. We only have 80 and 443 showing as bindings on the Default Web Site. There are no bindings on anything else.
To me, given what @eryildiz just reported, this suggests that ESRI did not expect anyone to be running traditional types of services from the hosting site. If that's the case, that would seem like an oversite for sure.
That being said, ESRI did not expect anyone to have the letters a-d-m-i-n in the name of their federated web adaptor site at 11.0 - like I do 'agsfed' - yet that did happen and I could not run a webgisdr until I upgraded to 11.1.
So - now I understand why maybe we 'got lucky'. We are not running anything other than hosted feature layers from the hosting site. All traditional services are accessed from the federated site. And although we have many (250 combined maybe?) traditional map, image, feature access, versioning, geolocator, validation, networking services running through the federated site, that app pool did not freeze before or after patch updates.
I should note that wherever possible, all services on agsfed are using the 'shared instance' dynamic mapping service. I have that set to 16 instances, appropriate for an 8 core 32gb server.
hope this helps some too -
David