I have a similar setup. Out of curiosity what film are you using? Mine is Varioglass a company out of Quebec. I found it was opaque enough so it wasn't see through but it didn't leave the room dark enough to use my computer during direct sun on the room hours (3-8 currently)
So I also put up some Ikea Fyrtur Blinds and now the room is wonderfully dark and cool.
I haven't added them to hubitat yet mainly because I am happy to use the button to control them as I hardly ever open/close them and from my understanding you have to choose either the button or hubitat controlling them.
My goal was to avoid blinds totally and it worked for the rest of my house just the office was not dark enough.
