I should say, it's a good habit too for sure. But ever since windows 7 you can swap motherboards and still boot up fine. You just need to get your drivers all set, something not having to worry about with a fresh install. But I just did it yesterday on time constraint, upgraded a mb without bothering to fresh install. Windows initializes the new hardware on boot and you're golden. I haven't tried going backwards to an older chipset, say from the core 2 or even pentium 4 days, but I assume it would be the same principal. I went from a 8x chipset to 1xx chipset without a problem on a build I was doing. And it wasn't critical for what the use of the pc is to fresh install, and again severe time constraint.
Here is a discussion on it:
https://arstechnica.com/civis/viewtopic.php?f=8&t=1307223
So if it is easier for the OP to avoid doing it, for whatever reason, then it won't be the end of the world. Just make sure the drivers are sorted out properly and you're golden. I always do try and recommend it though, if I have the time I usually always do it.