Screen assembly swap between two phones

My son bought himself a new iPhone 11, upgrading from iPhone 6s Plus. My plan is to replace the battery in that 6S+ and I want to put my display assembly from my 6S+ onto his old phone body, as his screen has a bunch of scratches, mine is in much better condition.

My 6S+ the motion chip died a year ago, and Apple refused to repair it, even though the Genius at the store admitted that they had seen iOS upgrades take out this chip occasionally, as my chip died going from 12.x to 12.1.x. It worked intermittently for several weeks until another update killed it completely. And yes, I tried all kinds of things even setting it up as a new phone did not work. Many features of the phone do not work without the motion chip.

My question is regarding the home button, will I need to swap the home button assembly on the displays, or since the displays and home button assemblies are both genuine Apple parts will the phones not care? I know that Apple has made things difficult by having the system record information from components making it a pain to replace things. I see that the home button assembly can be swapped but that the gasket can tear very easily, so if I can avoid this step, it would make this that much more easier.