So after driving home late at night from my moms place (30 minute drive) I noticed the temp guage doing this weird dance. The engine was still cold and after a bit of driving and getting to normal temps the needle didn't dance as much but still caught it on video though by this time it moved once our twice. At the beginning of the journey it only danced around within a certain limit like in the video but not so aggressively to the point where the needle would jump to the ends of the gauge.
I've uploaded the video to my channel. It does not inhibit the driving functionality of the car, just a weird side affect of an old alfa maybe.