iPhone X bluetooth connection problems after iOS 16 update.

My iPhone X has bluetooth connection problems. The Bluetooth connection drops very often when connected to devices such as Bluetooth earbuds, speakers, etc. These same Bluetooth devices don't have the same issues when connected to other phones or PCs. And when trying to reconnect, it connects and disconnects after a few minutes. Sometimes it doesn't connect at all. I have restarted the phone, turned Bluetooth on and off, forgotten the Bluetooth device, even reset the phone, none of them fixed the issue. The iPhone X behaves this way even when connected to the original AirPods. Anyone experiencing this same issue who can help?