Java's ZGC as of jdk 17 has very low pause times (e.g. a p99 of roughly 0.1 ms in this benchmark[0]). Their stated goal is to remain sub 1 ms, but in practice it stays well below that.

The JVM isn't the most common game dev platform, but I have been enjoying using LibGDX with Scala on jdk 17 with ZGC.

[0] https://kstefanj.github.io/2021/11/24/gc-progress-8-17.html