Definitely you should.
The Boot Camp drivers are a good starting point and will install everything you need to get started (such as for the Apple specific hardware features).
But the boot camp drivers are not updated very often, and you should definitely update the AMD drivers for display adapter which are probably far newer than what Apple has included in its Boot Camp support software.
For example, I have an NVIDIA card and regularly update GeForce drivers through GeForce experience every month or so.
You may also want to check for updated drivers from Microsoft through Device Manager (particularly the Display adapter as mentioned above and System Devices). E.g. go to Device Manager, System Devices, open each device and select drivers, update drivers (search online).
Last but not least, check Apple Software Update (on Windows) every so often.