Measure viewing distance
A larger screen is not automatically better when a shallow desk places it too close.
Resolution changes useful space
A 27-inch display benefits from enough resolution for the intended scaling and reading comfort.
The stand may be the real problem
A deep factory stand can consume more surface than the difference between screen sizes. A compatible arm may recover that depth.
Check laptop output
Verify the laptop and dock can drive the selected resolution and refresh rate through the planned cable.
Evidence label
Products described as tested were physically evaluated. Specification-based recommendations are labeled and never presented as hands-on tests.