logical replication and statistics

Hi

I did trivial example of logical replication (one table, one publication,
one subscription)

I am little bit surprised so after some work - the replication is working,
the statistics are empty

#master
postgres=# select * from pg_stat_replication ;
(0 rows)

#slave
postgres=# select * from pg_stat_subscription ;
-[ RECORD 1 ]---------+---------
subid | 16472
subname | test_sub
pid |
relid |
received_lsn |
last_msg_send_time |
last_msg_receipt_time |
latest_end_lsn |
latest_end_time |

Should be some enabled?

Regards

Pavel