your mileage will vary here, so this is a hard question.
The Cougar is NOT a lot of recoil. Its all metal so its heavy, that soaks recoil.
It has a rotating barrel. That soaks recoil.
It has a full size grip with a little dip near where the web of your hand will fit.
That soaks recoil, as well.
However, it really depends on the state of your wrists. Mine are terrible. I have avascular necrosis, so the bone that lets my wrists rotate are dying. One was removed, my right hand, so its all steel plates and pins now. Needless to say my large caliber days are over. Another issue is hefting a heavy gun onto target. Without that bone to stabilize things, it can be pretty difficult and very painful.
Like I said, shoot one if you can. They are amazing guns. The heft and kick is too much for my terrible, terrible shoddy wrists
But hopefully yours are better!
I don't have a walther ppk unfortunately, but i have its cheaper cousin the Bersa thunder. That recoil is fine on my wrist. So its all very subjective.
I am going to try a full size polymer 9mm to cut down on weight and see if I can manage that.