Yes, per [1] Google did restrict their use of io_uring on “production servers“, and in Android, ChromeOS etc.
However, within that same post, and what is often missed when that post is quoted, is that Google wrote that they did in fact “consider [io_uring] safe” for use by trusted components:
> For these reasons, we currently consider it safe only for use by trusted components.
A database like TigerBeetle is typically deployed in a trusted environment, and is such a trusted component.
