A condition report is another common term used alongside "inventory," and is essentially an evidence document. It records what the property looked like at a given moment, usually through a combination of written descriptions and photographs. The more detailed and accurately timestamped it is, the more weight it carries in a dispute.
Condition reports can be produced by professional inventory clerks, by your landlord, or by you. What matters isn't who created it but how thorough and credible it is. A detailed, timestamped condition report that covers every room, surface, and fixture will always carry more weight than a vague checklist or a handful of undated photos.
The deposit protection schemes rely heavily on condition reports when adjudicating disputes. If your landlord claims you caused damage, the adjudicator will compare the check-in condition report from the start of the tenancy against the evidence from the end. Without a condition report, there's no baseline, and the dispute becomes much harder to resolve fairly.