One obstacle is that at least one of the major console vendors prohibits using anything other than C++ plus their official compiler. So shipping on that platform using i.e. Rust, Swift, C# is currently against the rules. (Unity gets an out here since they compile C# down to C++ using IL2CPP.)
I expect some studios are just quietly breaking the rule and not telling anyone, but I'd be worried, personally.
People outside of the industry woudn't believe how it is to work with first party such as Sony, just to get SDK / api / documentation / forums access you need to have a very complicated process that involves public IP whitelisting etc..
Even NVidia's GeForce Now cloud gaming service is like that. I tried to get a developer account and they wanted US$10,000 just to talk. It's not like getting an AWS account.
CrossCode was written in JS/HTML5 and was ported over to consoles just fine, though.
They mention stuff like "an interpreter which translates the [JavaScript] code but locks it up in a cage"¹, their presentation² mention JS interpreters and a JS AoT compiler, so I'm not really sure how they did it
My gut says Nintendo, because Microsoft doesn't give a shit what you use as long as you write for them, and Sony doesn't feel like they'd be that petty.
I expect some studios are just quietly breaking the rule and not telling anyone, but I'd be worried, personally.