>And nothing prevents anyone to launch a fork on GitHub. When Wampserver is installed, you have the whole "code", except Wampmanager.exe, that is Aestan Tray Menu Copyright (c) 2019 - 2022 by Alain-Michel Verwee Alias Maximus23.
AeTrayMenu is public domain and on github: [
github.com]
As for the code, GPL requires that any scripts used to create any installer for GPL code also be released. The last update of the WAMP sources on SourceForge was in 2020 which means it is likely out of date.
Per GPL:
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete
source code means all the source code for all modules it contains,
plus any associated interface definition files, plus the scripts
used to control compilation and installation of the executable.
It is not sufficient to simply say that the installer includes the "source" because the source scripts (ISS,languages files, etc) being used are considered part of the "source".
I agree that you do amazing work, but the community also has to seek enforcement of the rules of the free software being distributed to ensure the same protections are passed on.
If making your private github repository public helps ease the burden of adhering to the requirements of GPL, it might be worth consideration.
In any case, the SourceForge installer sources likely need to be updated.