Keep in mind you might be operating them with a spacesuit gloved hand. I'm not sure how thick/solid they are, but there would be a decreased sense of physical tactile feedback.

Looking at the left panel, I'm guessing you first select the function you want (Water Deorbit, Deorbit Now, Breakout, Depress Response, Suppress Fire, Fire Response), then click either Execute or Cancel. Lights on the switches help you know what is selected.

There's clearly a seam around the buttons allowing them to be depressed along with an internal light.

Looks like most car hazard light buttons.

If we're going to speculate based on a picture lets go with the most likely that the physical buttons do have tactile feedback lol.

Zoom in and look at the left side group of buttons. Is that a clear overlay that flips down or something?

That may be why it looks flat to me.

Yeah, they're all covered with safety covers to avoid bumping.