https://github.com/bitcoin/bitcoin/blob/d72758c3f6c34cd835f5de3efc230964f3b1ea56/src/torcontrol.cpp#L539

If a user is running Tor proxy outside localhost (perhaps on other host inside LAN or in containerised environment) , the automatic creation of onion services ends up creating an onion service listening to hardcored 127.0.0.1 address on the Tor proxy's host instead of the private address of the bitcoind – effectively running an empty onion service listening the Tor proxy's localhost.
{
    Init(connOptions);
    {
        LOCK(cs_totalBytesRecv);
        nTotalBytesRecv = 0;
    }
    {
        LOCK(cs_totalBytesSent);
        nTotalBytesSent = 0;
        nMaxOutboundTotalBytesSentInCycle = 0;
        nMaxOutboundCycleStartTime = 0;
    }
    if (fListen && !InitBinds(connOptions.vBinds, connOptions.vWhiteBinds)) {
        if (clientInterface) {
            clientInterface->ThreadSafeMessageBox(
                _("Failed to listen on any port. Use -listen=0 if you want this."),
                "", CClientUIInterface::MSG_ERROR);
        }
        return false;
    }
    for (const auto& strDest : connOptions.vSeedNodes) {
        AddAddrFetch(strDest);
    }
    if (clientInterface) {
        clientInterface->InitMessage(_("Loading P2P addresses...").translated);
    }