Have you considered a tablecloth?

I have no needle skills at all, but I wonder whether a cloth cover could be made height-adjustable, in the way some window shades are. I’ve seen you give lovely, helpful advice to others here. I hope you can find what you need.

What about an adjustable table base that you can attach a nice top to? Could be nice wood or marble or granite, copper tray, etc, either square, rectangle or circle? https://tablebases.com/lift-base-black-stainless-steel-table-base-adjustable-height

eta: oops not rollable...similar with a cheap top that you could replace:

This is on $55 on the big river:

adjustable half moon

I can simply recommend you, as a person who has made his office at home, do not spare on it, I advise you to buy https://www.progressiveautomations.ca/pages/table-lifts table lift mechanism here, you will only thank yourself for it, because you will stop waking up with a headache, personally I have done so, so I recommend you on this matter do not save money.

I went the table cloth route. It looks great in the down position. When I raise it to work it looks a bit silly, but who cares - I just lower it when I'm done working.