Solid wood planks can be recognized by their length, 2 m and longer. In contrast, laminate panels usually have dimensions of 20 cm in width and lengths of 140-150 cm.
Solid wood parquet can be identified by the joints; there is a uniform joint pattern across the surface, but upon closer inspection, the individual joints are different. Each "parquet piece" consists of only one "board" with joints all around.
In addition to classic laminate (wood imitation directly on the carrier board, usually pressed wood fiberboard), multi-layer coverings have become established in recent years. These can also be multi-layer parquet, with a 3-4 mm real wood wear layer. This multi-layer construction (similar to plywood, cross-glued) can also be the substrate for higher-quality laminate or even cork — making it not so easy to distinguish anymore. The multi-layer construction has the advantage that it remains dimensionally stable — and thus is also well suited for underfloor heating.
From my point of view, laminate is not the most durable solution, as water can penetrate through the joints into the wood fiberboards, which then partially swell.
I personally consider multi-layer parquet the more resilient solution, as scratches do not penetrate through the top layer and the parquet can also be refinished.