My rust compiles in the time it takes to switch from my editor to my browser to see the changes incremental recompiles are fast enough imo. Dioxus has hot reloading if you want to go faster and Bevy uses it for hot reloading as well.
Gamedevs usually have the most powerful machines of all types of devs because of it's very nature. Yes you can't compile Rust on the GPU but big gpu's come with big CPUs usually.