Is Manjaro Plasma stable for anyone?

[KNERD]

Although, of course, with direct support from upstream, you can expect them to quickly become the most advanced choice, and thus the users favorite, so that's a reasonable choice.

I don't think this follows logically, necessarily.  Projects live and die by developers/contributors.  Often, this is highly correlated with community size, but not necessarily.

I can agree with that. After all, the Manjaro Plasma which comes with the PinePhone still does not come with a ready made SMS/MMS client. Instead to get texts, you have to install an application which is designed to do things with the modem, not specifically for SMS/MMS.