Did you know #postmarketOS has been shipping nightly built #Plasma6 packages for a while now? It has been useful so far for #plasma developers to develop and make #PlasmaMobile Qt6 ready, but it's also a great way for more experienced users to help test out KDE and catch bugs early!
Details to enable it for yourself can be found at https://wiki.postmarketos.org/wiki/Nightly
WARNING: only for experienced users, things can break any day!