Question for Real Time apply

set up standby database with real time apply, can see on standby redo log file size continue increase, but current_scn in v$database does not change. Is this nromal?

select SEQUENCE#, STATUS, BYTES, USED from v$standby_log order by 1;

 SEQUENCE# STATUS          BYTES       USED
---------- ---------- ---------- ----------
         0 UNASSIGNED  105906176          0
         0 UNASSIGNED  104857600          0
         0 UNASSIGNED  104857600          0
      9265 ACTIVE      105906176    1216512

select CURRENT_SCN  from v$database
    CURRENT_SCN
---------------
 10209405856785

Source

SQL>  select DEST_NAME, STATUS,RECOVERY_MODE from v$archive_dest_status
DEST_NAME                      STATUS    RECOVERY_MODE
------------------------------ --------- -----------------------
LOG_ARCHIVE_DEST_1             VALID     IDLE
LOG_ARCHIVE_DEST_2             VALID     MANAGED REAL TIME APPLY
LOG_ARCHIVE_DEST_3             INACTIVE  IDLE