You can set compiler option or disable compiler warning using two ways.

CMakeLists.txt way

Add string like this. Note that you should add it after add_executable().

target_compile_options(${PROJECT_NAME} PRIVATE -Wno-packed-bitfield-compat)

CMakePresets.json way

Make CMakePresets.json and add

      "cacheVariables": {
      	"CMAKE_CXX_FLAGS": "-Wno-packed-bitfield-compat"
      }

And build your project

cmake -S src/ -DCMAKE_BUILD_TYPE=Release --preset "HabrPresetName"
cmake --build build/ --parallel