Version 12 of Electron has just been released with initial Wayland support. I've been waiting for this for a long time now, so I'm pretty excited about this.
This means that now the three major GUI toolkits for Linux (GTK, Qt and now Electron) support Wayland natively.
Hopefully the Chromium Embedded Framework (CEF) will follow suit soon [1] which should make it possible for Steam and Spotify to run natively on Wayland too (as soon as they upgrade, of course).
[1] - https://bitbucket.org/chromiumembedded/cef/issues/2804/ozone-wayland-x11-support