I don't have a source, and too tired to look it up. But I thought I saw someone back away who found some tucked away support in APFS for case insensitive file s

I don't have a source, and too tired to look it up. But I thought I saw someone back away who found some tucked away support in APFS for case insensitive file support on macOS. Maybe misremembering. But someone had hacked it to run as a boot drive, and in doing so, found the setting.