We need an approximate percentage of the prevalence of JVM on desktops.
It will be even better if there is data on the platforms.
I know that the JVM is already out of the box in most popular Linux distros, as well as on MacOS. But how is it going on Windows? Especially on XP with different service packs.
In general, if not in the form of an applet or JavaFX, you can use Java - look at it as a variant of DirectX. If the situation allows, you can distribute the software with your jre. - joy cervantes