You pull down on the screen to show the top cards for various settings and long press Bluetooth to open up options, then press "+Pair Device". Put whatever devi

You pull down on the screen to show the top cards for various settings and long press Bluetooth to open up options, then press "+Pair Device". Put whatever device you are connecting in pairing mode, then click on it in that list once it shows up. It's pretty self explanatory on the Android side, the issues seem to stem from the implementation of Bluetooth on many other devices. This is on a Pixel 4.