While porting to Rust has been a trend, as Prettier runs on every save, the speed boosts will be significant. I'll be trying out Biome soon. Congrats to the Biome project!
For interactive use we really should be using long-running, warmed up, processes too, where the start time of Node is irrelevant. Ideally type-checking, linting, highlighting and formatting would run in one language service doing incremental parsing and updates to a shared AST on every keystroke.
I think this is the reason Biome (originally called Rome) started. Rome's vision was a shared toolchain to yield better performance and to fix config hell.