The windows of the oval office are designed to defeat eavesdropping. There was an article I read long ago (maybe popular mechanics) that talked about how they could make the windows to defeat what you are describing. I think they set them to vibrate where a person in the room does not notice it to defeat this, but I cannot remember the exact science.
“The windows of the oval office are designed to defeat eavesdropping.”
I would like to think so. I’ve seen some really stupid things in my life though and have been exposed to some of the tech, enough to scare me about the possibilities, directional microphones is the least of them.
Or simply use a double pane with a vacuum between the panes.
One method I heard of preventing eavesdropping through windows is to play music in the air space between the window panes.
I glass installer once told me that they installed the windows at one of the intelligence agencies and that’s what they did.