System requirements for PD for Mac 15 running Windows 10 with Dragon Dictate Professional

Hi,
I am thinking of buying a new MacBook Air or MacBook Pro and using Parallels for Mac 15 to run Windows 10 with Dragon Dictate Professional.

The system requirements for Parallels for Mac 15 are:
RAM: 4 GB of RAM (minimum) or 16 GB of RAM or more (ideally)
Graphics: Intel, AMD Radeon or NVIDIA (minimum) or AMD Radeon Pro graphics card (ideally)

The Dragon Dictate Professional requirements are:
CPU: 2.2 GHz Intel® dual core or equivalent AMD processor (SSE2 instruction set required)
Processor Cache: 512 KB
RAM: 64-bit: 4GB

I plan on running Dragon and a translation software program in the guest Windows 10, while running Firefox, a PDF reader, Excel, Word and the Spotlight function on the host system Mac OS Catalina.

Do I need 16GB or 32GB of RAM?
Would the Apple 2020 version of Intel Iris Plus Graphics integrated graphics chip i.e. not the older Intel Iris Plus Graphics 645 or 655 be sufficient for my needs?
The CPU would be a quad-core i5 or i7.

Any advice would be greatly appreciated.