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.
{
    if (gBase) {
        LogPrintf("tor: Thread interrupt\n");
        event_base_once(gBase, -1, EV_TIMEOUT, [](evutil_socket_t, short, void*) {
            event_base_loopbreak(gBase);
        }, nullptr, nullptr);
    }
}
void StopTorControl()
{
    if (gBase) {
        torControlThread.join();
        event_base_free(gBase);
        gBase = nullptr;
    }
}