Just saw this response from a Google employee on the Pixel Buds community:
"I just wanted to let all of you know that we’ve heard you, and our team will be rolling out software updates in the coming weeks to improve Bluetooth stability and connectivity.
Thank you for providing your feedback, both on this thread and in feedback reports. Our team has found it beyond helpful while investigating and working on improving these connectivity issues.
I’ll continue to follow up on this thread with updates. In the meantime, please keep filing feedback reports and feel free to
@Mention me directly with any concerns, questions or issues, and I’ll do my best to address each of you."
https://support.google.com/googlepixelbuds/thread/43794726?hl=en&msgid=52196394