The 75th percentile is $290k which fits the comment I was replying to ("a little under $300k") and by definition not an outlier.
Actually, looking at the earliest data points levels.fyi still shows under the same page, $300k doesn't seem to be an outlier in 2017 either:
https://imgur.com/a/hhO7dQE
Anecdotally, Google has not become any more competitive in the past few years as far as compensation goes.