Most common Linux distributions focused on stability do not randomly break with updates. That’s usually not an issue. Basic things like Desktop and audio or lock screen are also never broken after an update. But it depends on the Linux operating system you are using (there are thousands of Linux operating systems and they can vastly differ) and what hardware and habits you have. Windows biggest strength is that it gets the most support from developers and being basically only one distribution to target.
But calling Windows “battle tested code” is a bit of stretch. Windows is full of problems and I had my own issues due to updates of Windows (when I was using it in dual boot). Also in Linux I can update and do not boot until I want to boot. I can decide not to update. Overall I have more trust in Linux updates (even using on Archlinux) than Windows updates. Microsoft constantly fucks up updates. And they even introduce and install stuff you don’t know or want to.
An old story of mine buying Civilization 6 at launch on Windows was unplayable. After days and contacting support, turned out it was a Skype installer that was installed with a Windows update without my knowledge. And it was just an installer to install Skype, not even running. Removing it made my game Civilization 6 playable. I never had such an issue on Linux.