Documentation about physical replication

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/11/warm-standby.html
Description:

I think it would be a good idea if the chapter about replication
(https://www.postgresql.org/docs/current/high-availability.html) clearly
stated that physical replication between different operating systems
(Linux/Windows) is not supported.

Currently there is only a small hint that states that *logical replication*
is supported between different platforms, but nothing explicit that physical
replication won't work between different platforms.

The same is true for pg_basebackup - it should also include a hint that it
won't work between different platforms.