Schedule-heavy professionals finishing a meeting or commuting hand over a spoken set of to-dos, meeting times and loose notes, and end up with calendar entries plus categorised tasks and notes, still needing to confirm the items themselves.
Typing items one by one into calendar and to-do apps, or transcribing voice and copy-pasting into each tool manually.
Verbally given information must later be split by hand into to-dos, schedule items and notes across different tools, which is easily dropped or postponed; not solving it causes forgotten items and repeated sorting.