Steinberg VST live announced
A while back i was looking into a mainstage -like application for windows and this probably would have settled it for me. This is not quite as content-rich as mainstage or as cheap (although it's debatable since you need a dongle/apple computer), but it has different features like DMX and a sequencer. It's sort of like mainstage meets cue lab and looks like it can be very useful for windows based performers. One thing I noticed was that it is not M1 native and that might be due to the included halion sonic and effects not being there yet.
I hope this helps someone!:)
https://www.steinberg.net/vst-live/
https://gearspace.com/board/new-product-alert/1382893-steinberg-vst-live-announced-new-post.html