Part of the pressure behind abseil is that perf and promotions are correlated with open source (Tensorflow, Chromium, TFX, etc) and it would be essentially impo

Part of the pressure behind abseil is that perf and promotions are correlated with open source (Tensorflow, Chromium, TFX, etc) and it would be essentially impossible to translate internal projects for public release without a public library like abseil. In contrast Facebook Folly has much less overall clout because engineers there have more incentive to build-from-scratch, which can include simply not using C++.