No. This is very unlikely not supported. This means that sure, you might be able to do it, but you may not be able to get proper drivers and the manufacturer/ Microsoft may not offer you technical support. In addition, you would need to acquire the Windows 8.1 media and license. That's from a technical and supportability perspective.
From a personal perspective I would say don't take a step backward; Windows 10 is fairly easy to learn and is extremely secure. Installing Windows 8.1 on your new laptop is akin to buying a corvette, ripping the engine out and replacing it with a Cavalier engine