PostHog positions itself as a "product operating system" and it (partly) competes with companies such as Mixpanel, Amplitude, and Pendo [1], which Highlight integrates with.

There is a somewhat overlap of their product features with Highlight (e.g. Session Replay), but I still think it would be beneficial to have a native integration, e.g. for live events.

[1] https://posthog.com/docs/migrate