yeah, I immediately came to the comment section to look for inlay hints, and your comment is the only one that mentions them. I guess many people might not be aware that they're a standard editor option?

fwiw, while inlay hints are great, they don't work in either git-delta or github, so they're not availabe in a good chunk of the places that I'm looking at code, so for TypeScript, I do lean towards object arguments with keys the way the article suggests.