Hello Umberto,
I have been reading some of the very unkind remarks by one or two users in this forum, no doubt triggered by their acute frustration. I have also seen your comments regarding ongoing support for P3D and I was wondering if the time has perhaps come for you to separate the updates for the two sims. You say there is a lot of stuff common to both sims and I guess separating them would mean a great deal of duplication in your data base. However, it might be necessary preparatory work before curtailing support for P3D, if this is your ultimate intention.
I believe there would be some value for P3D users to have a 'fallback' in the updates to which they could revert in times of need. In the current situation where an update seems to have caused very many problems for some users, they may prefer to revert to an earlier version of GSX, which was to a very large extent trouble free, although not inclusive of recent changes, while waiting for problems to be resolved. This would mean having an additional section in your downloads containing the setup files dating back for ,say, 6 months.
I still have GSX setup files dating back to January, 2020, in my downloads folder and I have tried to use the more recent ones, but the automatic update, which proceeds after installation, overwrites the earlier files and the problematic issues are thus imported. This could perhaps be resolved by changing the update to manual, so it could be ignored when necessary.
The intricacies involved are beyond my understanding, but if the foregoing suggestions are in any way achievable, I believe a great deal of stress on all sides might be avoided.
Regards,
Quentin