The sample size is always going to be very small, even without accounting for things like purchasing habits or type of usage, so beyond the light trolling of this thread it's hard to tell.

I will say that desktop pre-builts are more likely to need some tweaking than gaming laptops, in my experience. The last one I had needed a new case unless you like your CPUs well done instead of medium rare and the one before that was an Alienware that needed a full motherboard replacement halfway through its lifetime (I know about the Alienware thing, but hey, they did send a guy to my place to swap that out, so there, overpriced, overengineered garbage justified).

When I went back to a self-built desktop I ended up with a temperamental motherboard that doesn't like my RAM on XMP on some slots but does on others, and there is some weirdness about the fan curve I can't quite figure out. It's all a crapshoot.

Gaming laptops are harder to troubleshoot by yourself, but on the plus side they tend to be handled on RMA, since they are a self-contained unit. Depending on whether you think that's more or less convenient your mileage may vary on their resilience, I suppose.

I definitely don't hate desktops or anything, but there was the meme of telling people to not buy gaming laptops for a good long while, even from very knowledgable people, even well past the point where gaming laptops on all price ranges had become very competent and versatile. The pet peeve is more with the repetition of the meme than anything else.