This is my usual #Apple #ios update reminder that upon reboot of your device, your #bluetooth will be enabled. (Regardless of how you had it configured)
I mention this as you may have family members, other devices that you use that have zero need for Bluetooth. This is NOT a difficult toggle to enable on your own time when the need is warranted.
Hopefully, Apple will eventually honor your bt settings, but history indicates they don’t give any Fs.