Turning bluetooth on causes phone to hang. Any apps needing bluetooth cause the same.
Turning on my bluetooth causes the entire system to hang or lag. Sometimes, SystemUI stops working altogether. Usually, I just have to wait and not use any apps until it stays on. Often, after the hang, it turns off again.
Once bluetooth is on, it stays on and is usually okay.
Frequency of occurrence: 8/10 times that bluetooth is turned on.
I pair bluetooth with a pair of Signature Acoustics headphones (often) and with a PC (less often). The hang occurs regardless of devices present nearby.
Issue has been present since at least April 2020, when I installed Aarogya Setu (I uninstalled/reinstalled it several times since then)