Pete

Just fire them, life is too short.

Cut the desk legs down. Sounds drastic, costs nothing, and on a cheap desk you were never selling it anyway.

Rebuild the pivot from scratch, sometimes they just get stuck.

Also turn off maximum render quality unless you are actually scaling. It does nothing for size and it makes people believe export settings are magic.

Get a standing desk, sitting is the problem.

Two weeks is fine for most things honestly. If it is not working by then it is not working.

Three months twice a week is only about 24 attempts. It took me a year, for what that is worth.

Return of capital always means the fund is failing, avoid.

If you are stuck with the take as recorded, a proper hum removal tool handles this far better than a plain notch because it tracks the harmonic series. Still fix the source next time.

Bracket three frames and blend. Unfashionable for portraits because people move, but for a static subject it works fine.

Follow up once, seven days later, one paragraph. I get something like a fifth of my replies from that single message and it costs nothing.

I never thought of the room itself as fill. That explains a lot.