Got resolved using instructions at :https://stackoverflow.com/questions/67901552/vmware-fusion-11-macos-monterey-no-internet-access-on-guest-os

It is with a property list in /Library/LaunchDaemons, We are seeing the alert on macOS 15.0 (24A335) also.

It is with a property list in /Library/LaunchDaemons and during installation post install script, it is launched using below command. (In actual instead of APP, company it is the name of the app and company , just modified to paste it here) sudo /bin/bash -c "(/bin/sleep 5; $log 'Launching the APP!!!’; /bin/launchctl load -F /Library/LaunchDaemons/com.company.APP.launchdaemon.plist | $log; $log 'Finished launching the APP’) &". I have removed the dylib with reference to NSHOST, now it prompts from the code that uses websockets library(which communicates over localhost/127.0.0.0) . Is this expected? We are seeing the alert on macOS 15.0 (24A335) also.

on 15.1 the popup is not seen

Filed a bug and the bug ID is FB18222511

Now with Beta 2, it is button is clickable but status is not reflected in the UI until relauch of that window