The SM-G973F/DS is the international Global variant of the Galaxy S10. The "F" denotes the Exynos chipset version (as opposed to the Snapdragon "U" version found in the US), and "DS" stands for Dual SIM capability. Because this model is sold across various regions, the firmware is divided by CSC (Consumer Software Customization) codes. Why You Might Need Official Firmware
The standard method for flashing firmware on the Galaxy S10 is using the tool (Windows only). samsung galaxy s10 sm-g973f ds firmware