Not having any problems but was wondering if it would be a good thing to shut down and pull the power periodiically to clear the radios.
If it aint broke……
you asked: if it’s a good thing. And the answer of: if you detect nothing wrong, what are you fixing? is a reasonable answer. However, fixing small, perhaps invisible things can be beneficial. So, sure, reboot, especially if it makes you feel better 
Just be sure to do if via shut down FIRST, then pull power second.
One of my lessons learned, is to put this into play via having the Hubitat Hub on a simple wifi outlet. That way, I can do this activity (power off, wait a number of minutes, reboot), REMOTELY.