The software used will scan your CV for keywords and phrases and decide whether to send the invite for the tests. Then based on how well you did in the tests, decides whether or not to send an invite for the videos. THEN it can perform some machine learning/AI (all them buzz words) to predict your match to the role. This can be things like eye contact, tone, confidence in your voice and body language, keywords and phrases. I'm not 100% sure about this software package but similar offerings have the option to let current employees take the assessments to get a base line idea of what the ideal person is, then comapre that against your test and video assessments to determine how closely you match up to people currently employed in the same role. Then the recruiters will get a rating for your potential... it really can be that impersonal
OR it could let everyone do CV, tests and videos, then get an overall score. A lot of this functionality is optional for the company though. A quick way to test is to submit a CV full of junk text.