

It takes like half a second on my Fairphone 3, and the CPU in this thing is absolute dogshit. I also doubt that the power consumption is particularly significant compared to the overhead of parsing, executing and JIT-compiling the 14MiB of JavaScript frameworks on the actual website.
KDE user here, I still use X11 to play old Minecraft versions. LWJGL2 uses xrandr to read (and sometimes modify? wtf) display configurations on Linux, and the last few times I’ve tried it on Wayland it kept screwing the whole desktop up.