The short answer
Choose an L-shaped desk only if its corner is otherwise unusable and you genuinely need two working surfaces; if you may rearrange the room, or work mainly on one screen, a straight desk is the safer choice. The deciding condition is the usable depth of the corner, not the desk's overall footprint.
What to check before deciding
Before committing, measure the two walls that would carry the desk and note what already occupies them: a window, a door swing, a radiator, fitted furniture or a walking route. Sit where you would actually work, because on many corner desks the screen ends up pushed into the corner, which changes viewing distance and where your arms rest. Check that your chair still moves in and out along the inner edge. Then confirm with the seller whether the model is one corner unit or a straight desk plus a return, whether that return can be fitted on either side, and how it is packed.
The comparison stops mattering if you work almost entirely on a laptop, need to move the desk between rooms, or the corner is the only clear wall you have, since a straight desk leaves the corner free for storage. If you do choose a corner desk, treat the manufacturer's stated dimensions, assembly details and cable-routing specification as deciding evidence rather than photographs.
A practical checklist
- Mark the L-shape on the floor with removable tape, sit inside it with your usual chair, and check whether your elbows, screen and paperwork all land somewhere comfortable.
- Ask whether the desk is a single corner unit or a straight desk plus a return, and whether the return fits on the left or right, because that answer decides whether it suits your room at all.
- Walk the delivery route first, including doorways, stairs and turns, and compare it with the manufacturer's packaged dimensions before ordering.
These are general planning ideas. For an individual product, confirm its exact dimensions, care instructions and installation requirements.
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