Rsync is pretty closely tied to unixy concepts of permissions, paths, access times, etc. You can find some rsync based tools for Windows, but IMO, it's a square peg / round hole unless you're using it inside of WSL.

robocopy is the Windows equivalent of rsync

Kinda, sorta. Robocopy is a very good tool, but it cannot do incremental file updates. Already mentioned bvckup2 can do deltas, but it's not an rsync client.