The bottom shelf is for the printer, or one of those old fashioned tower PCs. ?
When I built my desk, I put an IKEA glass table top on it as a writing surface. They come in different colors and it’s the least expensive 3/8" tempered glass you’ll find anywhere. And the edges are polished, of course. Cedar is pretty soft and tough to write on (single sheet of paper). Then again, they don’t teach kids to write anymore.
Losing fingers since 1969