What about the pessimization of single-threaded workloads? I'm still not convinced a completely free-threaded Python is better overall than a multi-interpreter,

What about the pessimization of single-threaded workloads? I'm still not convinced a completely free-threaded Python is better overall than a multi-interpreter, separate-GIL model with explicit instead of implicit parallelism. Everyone wants parallelism in Python. Removing the GIL isn't the only way to get it.