Take a look at this bevy of vertical blinds. Perhaps you could find one that is similar to all the window treatments and have the living room drapes stand alone. The beauty of them is they also cut the glare and look very attractive. Here is a link that might be useful: vertical blinds.

For a clean, modern look I would suggest looking into solar shades. They come in different weave thicknesses - from the very transparent to tighter weaves offering more privacy. They come in a variety of neutral colors (lots of whites) and textures. Typically, when I style a room, I do not begin with the window treatments. I design the window coverings around the room's style and floor plan. The window next to your fireplace has very little space on the left, so be careful when you do an outside mount. Also, I would mount the solar shades, or fabric roman shades (another good option) right up to the ceiling. For the sliders, do draperies - make sure to mount the drapery hardware at the same height as the top of the shades to balance everything out. Without the window treatments, my eye goes straight to the differences in height between the doors and side windows. Beautifully designed window treatments will correct that flaw and make the room look taller. Best of luck!

Your look will be contemporary with the Italian leather sofa so the simple-lined roller shades are exactly the right solution for your privacy needs and for the fireplace window. I think it would look too heavy with bamboo, even in the light colours. A roman shade would look odd over the roller shade. It would look like a valance. IMO the wood framing around your windows is OK but nothing special and it's not a big deal that it is hidden when the blinds are closed. It looks a little bare because your furniture is not in it yet. Adding a drape to just one of the windows will be fine if you want to, but don't do it before you have your wall art, furniture, rug etc. Your clean simple look is good for the living room windows.

I hadn’t thought to try to invoke a warranty but will look into it. I wonder whether any warranty even transfers to us, as we did not buy the shades. We could get away with having nothing there but you can really feel the cold come through in the winter when you open the shades so may as well have some insulation for overnight. I think I also prefer the coziness of closing in for the evening. That said, could that be the only curtain in the house or do I have to do a cellular shade for consistency with all of the windows? The curtain would be an easier fix but I’m very concerned about doing something that is considered ”wrong” for resale.