Not at all my experience, actually it was incredibly easy to get this working smoothly with hotwire and no javascript at all (outside the hotwire lib).
We have a Rails app with thousands of users streaming agentic chat interfaces, we've had no issues at all with this aspect of things.
A lot of them prefer to write Ruby because it is simply the most beautiful language they know of. Technical details are merely a formality expressed in code that borders art.
I was under the impression the industry was collectively moving in that direction, but then bootcamps ushered in a new era of midwit frontend developers hell bent on reinventing the wheel from scratch (poorly).
The commenter you're replying to, in fact, is saying lack of fundamentals is the reason people AREN'T using Ruby
I'd rate it as about 90%-ish of what react gives you at 5-10% of the development effort. React sites can definitely be nicer, but they are so much more work.
React is a good choice if you’ve got a huge dev team that can split things into components and independently work on things but otherwise React is so full of footguns that it’s almost comical that people choose it for anything other than bloated VC projects.
You can use HotWire with any language/framework you want.