If you feel like you need/want software from AUR you should check out Distrobox. It can run any distro on top of your installation using Docker under the hood, but it tightly integrates into your system so with little effort you can run AUR programs from your launcher as if they were natively installed on your Mint.
They still haven’t formally announced that development on KSP2 has stopped right? They didnt even announce the studio shutdown. Yet it’s still on sale on Steam…