> In other words, hypothetical improvements by AWS (and other Clouds) are extremely overrated.

Interesting, in a recent thread (I think it was about Redis going back open source) an AWS employer was bragging about substantial concurrency optimizations they implemented in Valkey. At the time I thought it could have been a great differentiator to keep proprietary but perhaps they decide to sacrifice it to help make sure Valkey takes over the Redis midshare.