pg_stat_replication write_lsn documentation ambiguity?

[Ron Johnson <ronljohnsonjr@xxxxxxxxx>]

https://www.postgresql.org/docs/14/monitoring-stats.html#MONITORING-PG-STAT-REPLICATION-VIEW

write_lsn pg_lsn

Last write-ahead log location written to disk by this standby server

flush_lsn pg_lsn

Last write-ahead log location flushed to disk by this standby server

They both say "to disk".  Should the write_lsn description be changed to "to the OS"?

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