[c_o_n_v_e_x]

I wouldn't recommend PO or PM roles if you're looking for low stress. That's not to say these roles aren't fulfilling or rewarding, but they come with stress. When things are going well, praise and recognition goes to the teams. When they aren't, you're the head on a spike.

I'd agree that the stress of Product roles varies with company. Dealing with clueless, egotistical executives and HiPPos is never enjoyable.