> Take two drawer units, and instead of putting the tops on them they were supplied with, put a slab of desktop across both of them with a gap between and you’ve got yourself a desk.

Definitely. My go-to is three units (I explained it in another comment too): two horizontal along the back wall and the third one in the middle, perpendicular to the wall. Then I put two kitchen countertops: that's now an ultra bad ass T-shaped desk for me and the wife. Plenty of room for monitors, laptops, the printer, physical notebooks, even plants (!) etc.