Hello, folks, it's been a while. Re-sharing an interetsting recording from GopherCon 2025:
Advancing Go Garbage Collection with Green Tea (youtube). TL;DR:

Go 1.25 includes a new experimental garbage collector called Green Tea, available by setting GOEXPERIMENT=greenteagc at build time. Many workloads spend around 10% less time in the garbage collector, but some workloads see a reduction of up to 40%!

There is an also official text version on the Green Tea Garbage Collector if one does not like to watch the video.

Thanks!