This matches my experience. A recent anecdote:
I took time during a holiday to write an Obsidian plugin 4 years ago to scratch a personal itch as it were. I promptly forgot most of the detail, the Obsidian plugin API and ecosystem have naturally changed since then, and Typescript isn't in my day-to-day lingo.
I've been collecting ideas for new plugins since then while dreading the investment needed to get back up to speed on how to implement them.
I took a couple hours over a recent winter holiday with Claude and cranked out two new plugins plus improvements to the 4 year old bit-rotting original. Claude handled much of the accidental complexity of ramping up that would have bogged me down in the past--suggesting appropriate API methods to use, writing idiomatic TS, addressing linter findings, ...