I feel your pain. I have a 2016 MBP 15' and primarily run boot camp for work. I have not found a good way other than try lots of hardware in different combinations. This gets expensive fast. Dongle life is hell. Maybe you can try out the apple adapter in store. But even if you buy it.

Install Windows on your Mac

Boot Camp is a utility that comes with your Mac and lets you switch between macOS and Windows. Download your copy of Windows 10, then let Boot Camp Assistant walk you through the installation steps.

Update AMD graphics drivers for Windows in Boot Camp

Download and install the latest AMD graphics drivers for Windows on Mac models that use AMD graphics.

Mac Boot Camp Clock Problems

Use your Apple keyboard in Windows

Mac Boot Camp

You can use an Apple keyboard or a keyboard designed for Microsoft Windows with your Mac. Many of the keys that you'd see on a PC have equivalent keys on an Apple keyboard.

Resources

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Mac Boot Camp Switch

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Boot Camp Mac Download