Absolutely would recommend a laptop with a proper OS with keyboard for job applications. I’m a recruiter and would never recommend an iPad (or any tablet) to job search on.
Why?
I’ve applied to a lot of jobs via the iPad between 2015 and 2017. There were a lot of frustrating online applications with various companies that were just not ready for an iPad.
I didn’t find the CV creation tricky. I used Pages for the CV and then personalized it with a cover letter etc for each application. Exported to PDF and used PDF Expert by Readdle to occasionally work on those files.
The pain points were really the hiring portals where you often had to create new profiles from scratch. It’s probably now more common to side load data from your LinkedIn profile than it was years ago, so that might play to the advantage of the iPad.
On the other hand I had the feeling that at least in North America hiring websites are not in the 21st century and a traditional computer will likely get you to more places and quicker at that.