Surface Book 2 has all of the recent May updates and I've done multiple factory resets on the earbuds.
When using the Surface Earbuds Bluetooth connection I'm able to get quality sound through the right ear bud but I pick-up a fair amount of static/dead noise in the left ear bud when using Teams. If I switch to another audio source (e.g. Spotify), the connection totally breaks and the audio skips/chops.
When using the Surface Hands-Free AG connection the quality of sound is simply not functional, as it constantly crackles with significant static, especially in the left ear bud.