Map view & Address fields — Add an Address field
Open the table, go to its field editor (Edit fields), add a field, and pick the Address type. That's the whole setup. The field stores plain text and behaves like Text everywhere — filters, reports, exports — but every place you edit it offers real address suggestions as you type, so what gets saved is a clean, complete address rather than a guess.
Already keeping addresses in a plain Text field? No rework needed: open the field editor, and in that field's row switch its type to Address. Values are stored as text, so the change is lossless — existing addresses stay exactly as written, and autocomplete kicks in from the next edit.