Mixed setup in V13 possible

[Spex]

Since Linux and Windows use the same codebase in V13, is it possible and supported to run a mixed environment?

Motivation: We currently use a configuration with dedicated backup, enterprise portal, proxy, and repository servers — all Windows systems.
I want to gradually migrate this environment to VSA (or linux servers because of fc attached storage for repo).
Finally, I want to switch the Windows backup server to VSA and PostgreSQL.