Hey ,
Thanks for your answer 
Small consolation to know i’m not the only hungry cat around^^
If Tom (http://www.tomlooman.com/add-mod-sup...engine-4-game/) is right, then it is already supposed to be very easy.
The official patcking doc (Updating Unreal Engine Projects With Patches After Release | Unreal Engine 5.2 Documentation) is not clear about where to put the pak file.
The last two notes confuse me between the /content/Pak and Releases/ directories.
note 1:
The patching process creates a pak file in [ProjectName]\Saved\StagedBuilds[PlatformName][ProjectName]\Content\Paks. This pak file is the patch that should be distributed to users. For example, on Windows, you would create an installer to copy that pak file into the user’s [ProjectName]\Releases[VersionNumber][PlatformName] folder, next to the original content pak file.
note 2:
Copy the pak file from ShooterGame\Releases\1.0\WindowsNoEditor to ShooterGame\Saved\StagedBuilds\WindowsNoEditor\ShooterGame\Content\Paks
My english is not very good but i understand the following:
note 1: “copy from Content/Paks to Releases/”
note 2: “copy from Releases/ to Content/Paks”
The good news is they don’t speak about any code modification so whatever the directory used, i guess it’s supposed to be automatic.
Content/Paks seemed the natural candidate as it already contains the main pak file and works very well with it.
But you never know unless you try.
I didn’t test the Releases/ dir yet, so i’ll have to.
I’ll go on with my tests while i’ve some energy left for this and will of course let everyone know here if i make some (lucky) progress.
Otherwise i’ll end up doing what you did: put this aside and wait for some solid support from epic.
Cheers !