No, this happens if the particular Wayland compositor you're running the program on happens to implement a Wayland protocol or extension you use in a "unique" way that causes your app to break. This wan't a problem with X.org because all distros used the same X.org (or, if they used an older X.org, and if that led to breakage, the solution for users was always the same: upgrade X.org).
I already explained above why "just use a popular toolkit" isn't a viable solution. Users do not care whose fault it is; all they care about is that your app used to work in KDE and now it doesn't in GNOME (the problem is even worse in Wayland than I'm letting on, because with Wayland, the DE controls the compositor and renderer -- there are so many more ways for the DE-specific code to interfere with the graphical program than there was with X.org).
