Combine vs async/await — which to choose?
The essence
In 2026 the default choice is async/await: it is part of the language, the compiler checks races, cancellation and errors propagate structurally, the code is linear. Combine is for continuous streams of events over time with rich composition: search input (debounce + removeDuplicates + switchToLatest), joining several sources (combineLatest), bindings in legacy ObservableObject code. For a one-shot "request — receive" operation Combine is overkill.
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