No. OneBuddy does not track its users in any way.
No analytics: OneBuddy does not include Google Analytics, Mixpanel, Segment, or any other analytics service.
No telemetry: The extension does not send crash reports, usage data, or any form of telemetry to external servers.
No user identification: OneBuddy does not create user IDs, device fingerprints, or any form of user identification.
No external calls: The extension makes no network requests except when you explicitly connect Google Calendar (OAuth) or use encrypted messaging.
This is a core principle: OneBuddy is a privacy-first extension. Tracking users would contradict the very purpose of the privacy tools it provides.