In addition to the network call data we already attached, that does go through data PII scrubbing on the edges as you mentioned, we're discussing capturing request/response body. We even talked about it today: https://github.com/getsentry/sentry-javascript/issues/7103

Avoiding any PII from getting into the system is always top of mind. And we're considering this as an opt-in regardless of scrubbing on the edge ingestion service.