V$backup_files not showing entire history

When connected via rman, I see backups from 30 days ago as it should since our retenttion is set to 30 days.

RMAN> list backup summary;

List of Backups

===============

Key    TY LV S Device Type Completion Time    #Pieces #Copies Compressed Tag

------- -- -- - ----------- ------------------- ------- ------- ---------- ---

1698462 B 0 A DISK       2020-10-16 19:00:01 1      1      NO        TAG20201016T185835

1698463 B 0 A DISK       2020-10-16 19:01:27 1      1      NO        TAG20201016T185835

1698464 B 0 A DISK       2020-10-16 19:03:13 1      1      NO        TAG20201016T185835

1698465 B 0 A DISK       2020-10-16 19:05:09 1      1      NO        TAG20201016T185835

1698466 B 0 A DISK       2020-10-16 19:05:17 1      1      NO        TAG20201016T185835

1698467 B 0 A DISK       2020-10-16 19:06:22 1      1      NO        TAG20201016T185835

1698468 B 0 A DISK       2020-10-16 19:06:32 1      1      NO        TAG20201016T185835