i have always advocated proviron in pct... it is fine to run during and can be of benefit... after pct depends... if you are running a sarms bridge, then it would be excellent to add to it but what you get from it solo will be minimal... there will be a nice libido boost and a little extra strength but nothing tremendous...
There's a lot of debate out there about Proviron use in PCT or off cycle, but everything I've seen points to it not affecting HPTA or recovery, so I don't see a problem with it. What are you looking for from it?