I strongly recommend using Linux, subject to a few caveats:-
1) Firstly make sure there are no programs that are essential for your purposes that are do not have equivalents in Linux. For me that requires access to windows to run CAD & Garmin Basecamp routing software. For CAD I have a virtual machine (VirtualBox) running on my Linux PC with a copy of Win10 running completely disconnected from the Internet. Garmin Basecamp however requires access to the Internet for updates so it has to be run on a dedicated Windows machine. All my other needs are covered by Linux software.
2) Test the machine using a live USB stick to ensure that the WiFi chip is identified and works with the version of Linux you have selected.
So long as you are able to connect to the internet, you should be able to set your machine up to dual boot and run Linux as your primary system. By using Windows as a secondary system and moving all your secure items, eg banking, to only access them through Linux it will reduce the risks of any issues with the Windows partitions being hacked.