Facebook doesn't pay an average US salary, either (which is presumably why anyone stays). Based on levels.fyi, you'd be looking at 300-400k eur for an E5 in Berlin all-in.
Not sure I'd recommend it; there are less cartoonishly evil companies who still pay silly money in Europe available.
They pay £271k at E5 for London according to levels.fyi so I presume that Berlin number is wonky.
I don't think they pay you that much in Berlin. Why would they? All other companies pay less - no competition what so ever. Paying >100k is already super good, so they do probably around that.