Its probably fine but you never know unless you look. I had one with about 60 k miles that had been installed slightly crooked somehow, I don’t remember how but it started making a noise. It was a Valtek aftermarket. I suspect the strong spring gave the installer trouble. The blade was not quite parallel with the chain so I think it was bent. If its the original, I’d probably leave it unless it gets noisy or your in there to replace a seal or something. I don’t think it’s like the older ones that the rubbing strip deteriorates.