Not perfectly same though. I just replaced my laptop motherboard that didn't work anymore by the exact same motherboard. Bought it from Ali express. They are the same model, brand everything. The processor as well as the discrete gpu are soldered.
Other things are unchanged, only the mobo was changed hardaware wise.
Software wise, everything is the same. Bios version, windows version and so on.
One thing that I noticed is different : when I install my usual 20h2 windows version through bootable usb, now at the beginning of the installation, it asks me if I have a product key to activate windows. And then It asks me to choose between multiple windows home, enterprise, home n and so on.
With my last mobo, It didn't ask me any of this.
My case is the proof that 2 same hardwares can trigger different symptoms probably because of manufacturing inconsistency. I can't use my laptop now.