rsync over ssh: do you need to be able to write to the remote computer’s file system? [closed]

Scenario:
using rsync (2 computers) to write/ erase files . One computer is a Mac (HFS+ or APFS file system) and the other computer is Linux desktop (ext4 file system). Could be either of the 2 computers executing the rsync command.

Is the ability of said computer to write to the other computer’s file system a concern?