The last (scheduled) release of Plasma 6.0 is here, with another round of bugfixes. Next up: The Plasma 6.1 series, initial version will be released on June 18th (if everything is going to plan).
As most of the underlying work is in QtWayland, I'd say: yes, it's Wayland only (not being the author nor an expert on display technology, so take my words with some caution). The blog post talks about some stuff that is impossible to do in X11 ("impossible" as in "would require massive changes to X11 itself, which no one wants to do").
As most of the underlying work is in QtWayland, I'd say: yes, it's Wayland only (not being the author nor an expert on display technology, so take my words with some caution). The blog post talks about some stuff that is impossible to do in X11 ("impossible" as in "would require massive changes to X11 itself, which no one wants to do").