Mastering either the crab and wing low technique is essential to any crosswind landing. It can be a challenge for any pilot, no matter their experience.
In situations where a crosswind is present, the aircraft will drift laterally as it approaches the runway. This drift poses significant safety issues because safe operation of the undercarriage requires the body and track of the aircraft to be aligned with the runway at touch down.
Here’s a video put out by Infinite Flight on both techniques.