1) that's completely irrelevant, if there is a toggle switch for bluetooth, then changing it to off should switch bluetooth....off. I hate Apple constantly pretending they know better what I want to do with my device than I do. If there is a use case here(keeping BLE working for watches and trackers...then make this option explicit in settings)
2) Since I imagine you'd like an example anyway - because I want to prevent my device from automatically connecting to headphones/speakers/cars that it has been paired to in the past.
I got your back: Shortcuts. Shortcuts on iOS lets you create (even location based automated!) actions. Also a single button on your home screen to disable your BT and / or WiFi.
BTW the Bluetooth button USED to turn BT off (same for WiFi) but it was changed to "do not connect to all visible BT devices for one hour" since so many people forgot to re enable their BT / WiFi and complained. So for you and me it is unwanted behaviour, for plenty of others it is now more what they expect.
My phone never connects to pre-paired devices when in low-power mode (Apple-off) though.
In fact, I use it to force it to disconnect from devices - sometimes I do that to disconnect the phone from the headphones so I can connect them to another device without powering them off.
BLE is mostly for beacons, to find and suggest hotspots, airdrop, etc.
The easy toggle prevents Bluetooth headphone/speaker connections without breaking everything else which uses Bluetooth.
Power consumption is extremely low – rather than trying to micromanage that, you’ll see far more savings from using low-power mode earlier or uninstall the top consuming apps.
That's... exactly what the toggle does, though? It remains barely active for things like AirDrop, but toggling it "off" turns it off in any way the average person would expect, and it definitely doesn't try to establish new connections, or even maintain existing connections, when turned "off."
