A premade kitchen counter top with a back splash from Home Chepo or Lowes placed on a 3 drawer file cabinet at both ends served me well for years .(adjust height with brick if required)
Functional, inexpensive & not bad to look at.
Friend had a huge L shaped one set up same way
Dont get the one with a sink cut out LOL
Best desk chair is a round cooler with a pillow on top. The plastic swivels just fine on carpet and no wheels to break. Cheap enough to replace when my fat butt breaks down the top. No arms that get in the way. Scoot closer to the desk by pulling on the handle.
I’ll pass on the roll top desk because I’d rather have the nice view out the windows. Sitting at a $35 garage sale find regular desk of solid wood and lots of drawers.