In my experience, in an RoR codebase, the dynamic-ness of rails severely reduces its utility to only enabling better auto-complete (as opposed to also helping out with writing logically correct code).

In typescript, when I do a refactor, or I add a feature, I will code for hours, relying solely on the typechecker for feedback, and then I will manually test, and then write unit tests. (It helps that I use discriminated unions with exhaustiveness-checks, and avoid shortcuts like `any`, to the extent possible).

Such a workflow is impossible with how limited sorbet is in the RoR context.

I'd still choose an RoR codebase with sorbet than without it any day of the week tho.

In my experience Sorbet is a lot less useful than mypy and frequently unhelpful or useless, and both of those aren't in the same league as Typescript.