I won't be as harsh because I have years of experience in Rails and didn't develop harsh feelings against it but moving from Rust/Go/Zig/TypeScript (which I used lately) to Ruby ain't smooth ride.

Discoverability is much worse, LSPs aren't super helpful. Using Dash (documentation app) helps a ton. Still some names are confusing after switch (took a minute to recall that 'filter' is actually 'select' in Ruby).

I won't say that dev experience is bad but it's definitely different.