To update this thread, and some lessons learnt
(Car only has 25k on the clock)
Fitted the Red Powerflex insert and a few things I noted.
Firstly when I removed the bolt and inserted the powerflex bush, the engine was very easy to swing with the bolt removed (one hand on sump little effort). The 2 top mounts support the engine weight and the dog bone supports the fore/aft movement, so I didn't think anything of it at the time.
Started the car and went for a drive and noticed pretty high NVH, at idle and in reverse. I persevered for 300+ miles but couldn't stand the NVH, you could feel it through your arse and less so on your hands but still unacceptable. So I pulled it out, binned it, and had a rethink.
I replaced the 3 main engine mounts, this made it 80% more solid with now only the VW designed amount of slop that many still want to remove due to it spoiling enthusiastic driving. Think 5th to 3rd fast driving as you enter corner/roundabout etc. engine can be felt swinging forward, or missing 3rd going up the gearbox at pace.
Full circle now and I ordered and fitted another red Powerflex insert and new stretch bolt, with new mounts and the insert bolt removed I couldn’t move the engine much with one hand on the sump as before, seems all the slop was gone? But I didn't think originally that the 2 top engine mounts reduced much movement, but they clearly all work together. Anyway took it for a drive and barely noticed NVH at idle, maybe 10% increase. Feels tighter and more like other none MQB cars I have owned. It actually make the car feel normal.
Anyway just thought I would write this in case others are scratching their heads over this small upgrade or why it may not have worked as they liked.
Mine was the right hand newer type (2016 on Powerflex said to me, but prefer for owners to double-triple check)
I picked red as it was close to normal rubber bushes which seem to range around 50ish on the durometer scale. but filled the void with something relatively soft.