AT1 FY21 - General Discussion + FA, page-1688

It's been around for ages, not a 'new competitor'. Similar to the normal PCR tests, but more mobile and typically reserved for high priority cases. Limited use and not intended for bulk surveillance like RATs.

E.g. https://www.dhhs.vic.gov.au/coronavirus-case-and-contact-management-guidelines-health-services-and-general-practitioners-doc

Rapid and point of care PCR testing
Most COVID-19 PCR tests are performed in a dedicated laboratory using validated laboratory-based high throughput PCR machines. However, there are also PCR platforms available that offer rapid results (in around an hour) that can be used in either a laboratory or near the site of patient care. The Cephid GeneXpert (XpertXpress) cartridge system is one example of this type of rapid PCR test that is used in Victoria. However, due to the limited supply of cartridges, it should only be used for suspected COVID-19 cases where their prompt ascertainment (within 1 to 4 hours) will provide a fundamental public health advantage, compared to the conventional PCR-based testing (in 8 to 24 hours). The GeneXpert platform in not a high throughput platform. Only 1 - 16 tests can be processed per hour by a single operator and this depends on the capacity of the machine. The use of GeneXpert in a COVID-19 outbreak must have authorisation from the Clinical Public Health Command and the supervising Medical Microbiologist at the pathology provider to which the samples are being referred.