Potency problems irreparable due to bicycle saddle?

It's well known that a bicycle saddle (if it's too hard and "ill-shaped"… and a man sits on it for too long) can cause problems (erectile dysfunction) because the perineum, with its associated nerves, is subjected to excessive strain. This can then lead to potency problems (which is why there are various saddles on the market, so everyone can find their perfect fit. But even then, it can happen that the major nerve down there is strained/compressed).

On the Internet you can find various entries under "Follow"

In some (entries) you read that it will stay that way permanently (even if you never get on the bike again) .. in others it says that the "strained" nerve will recover over time (if it is never put under that strain again)

So what is true?

Who has had such an experience? And what is the prognosis after some time? How did this "story" end? Did the nerve recover, or was the damage permanent?