Why do companies prefer job application forms over CVs?
Because applications can contain additional information most people won’t volunteer on a resume/CV, such as if you’ve ever been fired from a job, have a criminal record, what shifts you’re able to work,etc. Getting this information up front can save an employer a wasted interview if you can’t even work the shifts they need to hire for, etc. Usually the types of people who are applying for jobs that use applications instead of CVs don’t have enough to say on a CV without trying to be creative (and end up including too much information which doesn’t pertain to getting the job such as awards going back to kindergarten…) You can usually include a CV with the application though if you want to.