I had the same fear until I recently switched from macOS Mojave to Windows 10. If you go for a solid PC and the latest Windows 10, the transition will be quite smooth, to my experience.
I can now enjoy using an internal and fully supported NVidia GPU again, use CUDA, the latest OpenGL and OpenCL updates, and install useful Blender add-ons that aren’t available for Blender macOS, such as OpenVDB Remesh.