Personally, I'm doing no bundlers (of my own code) and no minification in my development loop, but still using types with tsc --watch. Typescript is faster the closer it gets to just "type stripping" (where the target and module formats are both something like `es${currentYear - 2}`, especially in the default emit pattern where the JS files just get output side-by-side the TS files they input). TSX to JS transformation, with Typescript (as the only tool in that chain [0]), isn't much extra work to slow it down. (TSX is a pretty easy transformation from its syntax to simple function calls. The hard part of TSX is getting types right.)

[0] So no Babel, only Typescript. You probably don't need Babel in 2024.

(ETA: I've even documented this development pattern for a library I built: https://worldmaker.net/butterfloat/#/getting-started)