Rust has been adopted by Microsoft, Amazon, etc. It's past the hype phase and well into the "languages people use for work and complain about" phase.

I still like it -- for systems programming, that is. It's a much better C++ basically.

Here's my 2 cents - a programming language (or any technology, smartphones, LLMs etc) has a honeymoon phase - during which everyone's excited about it and extols its virtues and focuses on how different it is from everything else.

Once that's over, people start looking at it with a more pragmatic eye - how much better is this really than what I had before. People start focusing less on the gimmicks and more on everyday usability.

For a programming language to be really popular, it needs that something that captures people's imaginations, but ultimately the stay power is determined by how useful it turns out.

Kotlin and Swift are very practical, but never had any wow features, so they never got hyped, they just quietly got more popular. Go had it with its green threads and channels, but nowadays most people seem to be not using those that much (I don't think there are a ton of instances of Go processes in prod with 10k threads), but otherwise its a solid language.

Rust - it's a solid language as well, and an improvement over C++ in some aspects like package management, but it's borrow checker and programming style is divisive.

Thing is, unlike goroutines there's no avoiding the borrow checker, so a lot of people don't really commit to Rust.