Wow, you're right about macOS 14, or at least macOS 14.7, but not about macOS 13.

The Mac mini in question has macOS 11 through macOS 15 installed on separate APFS volumes. I just tried booting into 14 and 13.

I'm not sure why I never noticed this before on Sonoma. Perhaps it was added in a later minor update, but I have no idea.

I can't reproduce on Ventura.