I am in the club! I've had noisy throw out bearing at cold start since the car was new. Now at 18k miles I have gritty clutch pedal.
I pumped the hell out of the clutch to see if it would fix but no luck. I might get some relief but then it comes right back.
I have an appointment with the dealership next week, but if the issue disappears I will cancel it. I have wasted my time there with multiple issues all resulting in "no problem found/normal operation".
I am now considering the long term prospect of owning my Subaru. Dealership will likely replace with same parts that are going to fail again.
This transmission really blows. The whole thing needs to be replaced with better parts. The cost and labor considered, I don't think I love it that much.