I think you’re not aware of the variability of the condition and that when I say working out makes some people worse that I’m not talking about not enjoying the experience. I totally understand that based on your experience what’s being spoken about seems reasonable.
Fwiw, I personally do go to the gym and feel it is beneficial to me, but I am aware of people here who are physically impaired by this. There are some whose muscle wasting is worsened by lifting weights, not improved.
The “10-15%” that you estimate this condition has taken from you puts you at the mild end of the spectrum. For some people, what these drugs have done to them affects every facet of their life.
It is not possible for everyone here to train and see improvements. Don’t confuse one person feeling better after 3 years as being a plan for recovery. I felt better after 15 months and started going to the gym. I think I would have felt better at 17 months gym or not.
To be clear - I am not saying you shouldn’t go to the gym. I am not saying that you won’t feel better going to the gym.
I am however saying that some people here will not benefit from going to the gym. For that reason going to the gym is not a cure for PFS.