How much privacy do you need being under the deck?

Well mainly from people to seeing in. When lights are on, you can see directly in the house.

Seems to be a decent distance across the lake. Problem I see is that even though you think you won't splash stuff up to the top...you will. Happens all the time. Like wearing a white shirt to a picnic. Not a question of if, but when.

Backlighting on the window does effectively reduces the reflectivity of the Low-e and make what is inside, more visible. You could turn on a bit of under deck lighting and that would help hide what is inside by the reflectivity.

What do you think about 2” wooden blinds?

We just went through the same issue, we have open concept with windows done in plantation shutters. I did not want the kitchen the same so we went with a woven wood and it it looks beautiful. A good balance with the shutters. With honeycombs on your other windows what do you think of plantation shutters?

Can you send some pics?

Designer Screen Shades are the perfect solution for windows like this. Get natural light, visibility out, and a shade that is super durable and easy to clean.

Brian, I’m not sure if you were asking me for pics (just saw your question) but in reference to what we did with our open concept, we did woven wood on kitchen window and plantation shutters (3 1/2 inch) on every window throughout. I’m a little more private as to posting my home pics but here are a couple pics of our windows. :)