For pirated games, I recommend Bottles installed as a flatpak. That’s because it has a per-game toggle for sandboxing the app, not giving it access to your complete home folder and optionally no network access or audio output.
Even when using trusted sources, you can never be safe enough. Bottles with sandboxing will at least protect your files from crypto trojans and prevent you from becoming part of a botnet. It should not have any impact on performance.
I did install it via package manager back when I used this distro and it worked well, but some weeks after, I switched distros to Kubuntu. Now I’m using Arch btw. with latest KDE Plasma (I recommend this).