Technically - I do not know to what extent this is truly done this way - the equal opportunities form in job applications is kept separate from the rest of the application, so that this information does not influence the recruiters' final decision on who to employ. However, collecting this data makes sense because it enables companies to keep track of how effective their inclusive policies are.

I completely agree with Guilherme Fians

The point is to ensure they really do it, that they do not only talk about it when in practice nothing happens!

https://www.tandfonline.com/doi/full/10.1080/12507970.2020.1827994?src=