I've found that GOG generally has around 40% of the games I like on Steam, so I use lists like this to find interesting ones and then check GOG if it's there so I can avoid paying Americans anything.

It doesn't always work. Steam's library is huge, but I'm doing my part for the whole #ElbowsUp thing, and for me, that means sending as little money their way as possible.

...and honestly, targeted sales like this make me think the boycott is properly hurting them.