Hi - I have seen this problem when I have too many apps installed on my device. There are a limited number of pages available and when I exceed that, an app will show up in Spotlight search, but not in my home carousel. On my iPhone X, that limit is 16 pages. If you have many pages in your home view, this may be the problem. I've also seen reports of users who cannot find the app because "offload unused apps" is set in the preferences. However, I don't think this would be the case if it is still showing up in Spotlight. Another suggestion would be to restart the device. Finally, you could do Settings->General->Reset->Reset Home Screen Layout, though be warned that this will re-organize all of your apps into alphabetical order. If it were me, I would not want to do this. Unfortunately, the app has nothing it can do to show or hide itself in the home screens. If you cannot find it, you may wish to contact Apple support.

Thank you for contacting us and I’m sorry for any inconvenience.

Is there any chance that you accidentally group Acrobat into another apps together?

Thank you for your patience