The user feedback for plasma in System Settings is default to disabled when I first start the system.
I would like to suggest the user feedback should be default to “detailed system information and usage statistics”
This will help the development team to have a lot more information to work on.
While this will certainly help with the statistics, it’s a contentious issue as many prefer that such data should only be given voluntarily.
So, this is probably not likely to be implemented. 
That is actually a plasma feature and gives stats to plasma developers and has nothing to do with manjaro.
For Ubuntu, during the setup process. There is a screen to ask user what level of user feedback they want. May be Manjaro can do the same thing.
There are indeed ideas for some minimal statistics collection (mainly info for the used hardware). However, in the W11 era, users are sensitive to data sharing. And open source users are especially oversensitive. For me it is a bit paranoic reaction (because unlike in Winboze, the data that will be shared can be seen from the user before sending and is very minimal).
Still, based on the mixed reactions in the internal tests and polls, the project is on pause for now.
It’s perhaps something which could be made more prominent, or even be given a periodic reminder… however, it’s the KDE philosophy that it must remain a stricly opt-in policy.
That’s putting it mildly.
@fckwan This is one of those things, that regardless of how useful it s to the developers, is users’ choice. Unlike Windows, users are not forced to provide information.
In addition to that, it makes no sense to enable it on the Stable branch, given that Manjaro Stable heavily lags behind on KDE upstream.
Right now, the Plasma edition of Manjaro Stable is still at Plasma 6.3.6, while KDE only offers updates to 6.4 and the newly released 6.5, and is not interested in hearing about issues with 6.3.x anymore.