The playback issues you describe are a core problem with the way Windows handles Bluetooth. You can't listen to high-quality audio via Bluetooth and use the Bluetooth device's microphone at the same time.
The way Windows handles Bluetooth headsets is by treating the "headphone" function and the "headset" function as two different devices. This is why it shows up as two separate devices on the Playback tab but only one device on the Recording tab.
You can either use your Bluetooth device as "headphones" with good audio quality. Or use the device as a headset and suffer terrible audio playback. Unfortunately, Windows doesn't let you have both.
This article explains it in detail. https://www.howtogeek.com/354321/why-bluetooth-headsets-are-terrible-on-windows-pcs/
Until Microsoft improves the Bluetooth function of windows, Bluetooth headsets will continue to be terrible on PCs.