Speaking as someone who recently switched from F# to TypeScript: yes, "annoying" is just what it is.
Until TypeScript at least has pattern matching you'll be writing at least 50% more code, maybe more.
Chaining would be a godsend, but without auto-currying, it's unsightly. Computation expressions would be better, and would probably be easier to implement if, say, TypeScript included a "native" `Option`, `Result`, or `Async`.
