EverNightX: You can install & run the Windows gog galaxy client on Linux the same as you would run a game. I think your easiest option is to install Lutris from your mint software store and then install/run Galaxy from Lutris.
Even if that were to happen, we have access to the source code for Linux. It can all be changed. It's the hardware TPM/Secure Boot type stuff you need to worry about more.
Bigfuzz76: I run my GOG, and Epic games through Heroic launcher. It does a great job of installing and running the games handling the proton/wine prefixes are all in a list allowing you to choose the one that fits your game best and simply install it. It even handles the storefronts and allows you to shop, buy, and manage you library.
Same. I use it myself too. Only problem is not being able to get setup files or have a screenshot folder for a specific game in heroic. Everything else is present. One other thing is no achievement sound or no notification pop up after getting an achievement but that isnt as big of an issue personally.