Feels like the Enterprise WiFi is done. cnMaestro being purchased by Airspan may offer some breathing room past 1st Oct, but like you say they have really included it as part of the backhaul acquisition for management of that hardware.
Airspan Acquires Fixed Wireless Product Lines from Cambium Networks
Appears to only cover their backhaul portfolio but would appear to suggest cnMaestro will live on.
Experiencing this on a few clients after having to reinstall the client on a few W11 machines. Was working fine before and machines that haven't been updated continue to work.
Just getting 'Client is running' but nothing in task manager either.