I've only used Bottlerocket in relation to EKS, and even then my interaction with it was pretty limited so I have no idea how it fares as a standalone operating system.

My one big experience with it was the recent bug which (as I recall) attempted to harden the system by marking memory pages as no-execute, which caused virtual runtime languages like Java to basically break entirely when running on a node using this version of Bottlerocket.

It was fixed pretty quickly, but it did feel like a weird thing to slip through...

Did bottlerocket get any closer to stable and usable outside AWS walled garden?

Last time I tried was admittedly in 2022, but in testing which distro to go with bottlerocket lost because we couldn't setup local builds...