Comfort with a smartphone does not automatically prove competence with workplace applications. A useful student portfolio can include well-structured documents, accurate spreadsheets, professional presentations and evidence of safe online practice.
ICDL states that its CORE programme covers workplace digital skills and is intended to support productivity, confidence and employability. Explore Speciss computer and ICT offerings or ask admissions which digital-skills course matches your current level.
Official reference: ICDL CORE.