Minor releases aren’t beta. By any convention they should be fully tested, final releases. And if gnu core utils broke systems in a minor release you better believe it would make it to some news.
The instability of choosing a beta software for the literal core of your operating system is kind of the point.
… Yeah? Beta software having bugs isn’t the hottest of takes.
Ubuntu 25.10 entered beta on September 18th. It releases on October 9th. It’s still in beta.