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With a catheter: why waiting is a bad idea
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No, not all cases are the same. Some patients with very prolonged urinary retention have bladder damage, they've lost contractility. In these cases, the results can be partial. That's why it's important not to wait too long.
The sooner the surgery, the better the bladder works. If you have a permanent catheter or a relative does, don't just accept it. Have a urologist experienced in laser enucleation assess the case.