The current answer
Gallipoli’s announced PC requirements are written for Windows 10/11 64-bit, and the official platform list names Windows PC, PlayStation 5 and Xbox Series X|S. There is no native macOS listing in the current platform set.
Why a PC listing is not a Mac promise
A game being available on PC does not mean it supports macOS. The Windows requirement, graphics target and storefront listings all describe a Windows build, so Mac players should not interpret “PC” as a compatibility guarantee.
What Mac players can do
The responsible wording is to wait for a direct developer announcement or a native store listing. Avoid recommending unofficial download pages or compatibility workarounds as if they were supported by the developer, especially for a pre-release game whose final requirements are still marked as subject to change.