createTRPCOptionsProxy

TanStack Query integration: you can directly use TanStack Query features like useSuspenseQuery, prefetchQuery, queryOptions combinations, etc. The legacy approach is more limited because tRPC wraps everything once. React independent. It's a pure object creation utility that can be used outside of React. This is fundamentally different from

createTRPCReact, which directly returns React hooks like .useQuery() that can only be called inside components.