I love your signs and your system!

Our window were the typical glass pane. My husband sprayed them white so from the outside they look like shades. Yours are obviously different and you only want to do half. Looking at your examples I think neither choice is ideal. Since you do have other natural light, I personal would close them both in. For me, glass block is not particularly pretty. Added to having half of one window on that wall. I know people like to save windows at whatever cost. One of ours was a bathroom that we added using space from the back of our garage. We couldn’t keep the window and have an efficient layout. This was an extra bathroom for our oldest daughter. She absolutely loved it not having a window!

That finish is pretty bad--IKEA normally does better. It's possible they are having COVID issues. I wonder if there's any way to find out. I'm guessing you were unable to go see them in person? Be interesting to see a display made with a (hopefully) good run. (The Bobdyn isn't wood and probably takes paint differently. And probably comes from a different production facility.)

If you haven't made the decision yet, my post is more thought-provoking for you and less my opinion. -Is the area outside of the doors/windows an area that will be used for entertaining? -What is the outdoor furniture plan; is it affected by the potential window? -Is the patio a covered area? Stand outside looking in and see if the window looks weird/unnecessary next to the SGD under a covered patio like the window doesn't belong or was an architectural afterthought? -If the area outside the potential new window is covered, how much light would you get from the window anyway? (Does the window serve a purpose for you in the basement?) -if the potential window is not under cover of a patio roof and you want more natural light, you could close the bottom 2/3 of the now-door and install one long or three short clerestory windows to add more natural light, that way the window wouldn't interfere with your furniture plans on either side. The three clerestory windows will add $$$ to your project, but could look nice? (...there's structural engineering to consider, so...) -From the exterior and interior, are the SGD and window symmetrical/asymmetrical? (Will the lack of symmetry make your eyes or your brain pupset down the road? I ask because my neighbors added a master suite over a garage to their existing home. The windows above the garage are hodgepodge like an architect had nothing to do with their addition. The garage door is centered on the bottom half of the addition; however, the two windows above are small; they're not lined up --one is a few feet higher than the other -- there's only two of them--it just looks wrong. So, my advice, walk far away and look at the exterior wall to plan the function your window/no window. :)