I use Steam mainly because I haven’t found any major issues with how Valve does things overall. It’s been a fairly good experience for many years. Plus, with the steam deck it’s much more convenient to have on Steam.
Now, I’m thinking if the price goes low enough, I’d pick it off GoG to download the installer and store someone just in case. I like the idea of having a backup just in case.
I actually use steam to install the GoG game installers and completely bypass the heroic launcher.
In short, I hope for the best, prepare for the worst.