What is the process for porting my game SFML from Windows to Mac

I’ve recently finished version one of a simple arcade game I’ve been making in SFML. I’ve already spent months on the physics engine and game, and I’m wondering how much time it will take to port it to Mac. I’ve been developing it using Visual Studio on Windows10. As far as I can see, this is the only way to do it;

1. Open Visual Studio on my Mac laptop, download all my windows code

2. try to compile it, fail, fix all the various stuff that wont work, try to compile again.

I can’t seem to find any tutorials indicating a better process, or how long I should expect it to take. It can’t be trivial, or else there wouldn’t be so many triple-A games that don’t run on Mac. I would greatly appreciate any tips on the process or time estimates. Thanks