Anyone have experience with patellofemoral arthroscopy (PFA)?

I'm seeing a surgeon in early April for a second opinion on a total knee replacement, and I'm thinking about discussing a patellofemoral arthroscopy (PFA) with him. I'm expecting pushback, because it apparently has a higher risk of revision, which surgeons see as a blot on their performance statistics, which means they don't like to do them, which means they have less experience with them. Also, of course, it doesn't fix the entire problem, so they are used to worrying that you will eventually need a TKA anyway, which would mean two surgeries rather than one.

But I understand that if successful, they have a faster recovery and leave you with more functionality.

I'm 72, have a somewhat complicated medical profile, have bought decades of surgery delay with weight loss, PT, injections, etc, and am fully expecting to be dealing with dementia by my 80s, so whichever I choose (the PFA or the TKA) will be the last elective surgery I plan to do.