Is the Tesla Powerwall-3-() Powerwall 3 (8kW) compatible with the Tesla Remote Meter?

Yes — listed by the manufacturer.

The manufacturer's published pairing data lists these together.

Minute Solar records Tesla Powerwall-3-() Powerwall 3 (8kW) with Tesla Remote Meter as compatible (A — Automatic). Derived from recorded specifications or compatibility groups; no manufacturer approval is recorded.

▦Manufacturer's compatibility listListed together in the manufacturer's published pairing data. A cited document reference is being added as datasheets are processed.