What are you talking about? Laptops are supported as they are PC hardware, spec recommendations as well as requirements are also not indicators if something supported or not and Epic most likly won’t refuse official support because of specs. Wiki only saying that Epic and i quote “do not provide any officially recommended specs for laptops” which does not sound as “not offically supported”
UE4 supports any hardware that at least SM5.0 GPU (SM4.0 on older versions, AMD NVidia as UE has tendecy to problem with other brands) and 64-bit CPU, the rest is matter how it will preform. UE4 won’t complain about ram but 8GB is absolute minimum for good working expirance, 16GB would be better…