It has survived hundreds of switches from HDMI output to internal display and back, and occasionally even to an external VGA one with all the software keeping runnning — well, most of it anyway: Lagrange sometimes crashes (and I suspect other SDL software might) due to weird resolutions being reported when switching outputs or when there's no output available, and occasional Thunderbird crashes — but that's what it always does anyway, sometimes for no obvious reason at all.
In any case, those of you who think "Wayland is buggy" are wrong — Linux kernel turned out to be more buggy