They made a option to use a similar wrapper for Macs.
construct.net/en/tutorials/exporting-macos-wkwebview-2718
It might be nice to have a MS Mac version, but I doubt they will want to maintain two similar exporters.
They would most likely have to use the web api.
partner.steamgames.com/doc/webapi_overview
Nobody has added the web version to the suggestions platform, but I would think that it would make it into Ashley's todo list anyway.