You won't have to uninstall windows. :3
Though, this standalone only works with windows. :( So for Linux you have to follow the automatic installer guide: https://invoke-ai.github.io/InvokeAI/installation/010_INSTALL_AUTOMATED/#walk-th... and the rocm (= "AMD cuda") guide https://invoke-ai.github.io/InvokeAI/installation/030_INSTALL_CUDA_AND_ROCM/#wal...
It's not crazy hard, but it's obviously a bit trickier. :)