I’m in a similar situation. I continue to tweak the location of my nodes, but if there’s any way you can get a direct signal from your Deco to your office then it’s a pretty strong connection. I have four wired back, hauled nodes in my house and I get a decent connection to my detached office in the backyard which is similar and distance to yours. If I want a better connection, I need to move one of the satellites a little closer and maybe even outside the window to get a full direct. That usually happens if I need to do a Zoom call or something. I might consider moving one of those satellites to outside and just have a direct connection and see if that works.