Hello to whomever reads this.
When I found out about the pixel perfect extension I thought it’d mesh very well into my future projects. However when I tried to integrate it with cinemachine I found a snag. According to this link Using the Cinemachine Pixel Perfect extension | Universal RP | 7.1.8 there’s supposed to be a cinemachine extension that would allow the two to function together. However the extension simply does not appear for me. Any help would be appreciated.
You probably need to update to Cinemachine 2.4.0, the option should show up then. 2019.3 + URP 7.1.6 + Cinemachine 2.4.0 for me.
I came upon some problems with Pixel Perfect and Cinemachine as well (Pixel Perfect chaging orthographic size after Cinemachine, screwing up the 2D confiner). After implementing a fix myself I found this post only when I wanted to post a about it… so yeah, lesson learned, use the forums more 
Thanks man that resolves my issue. Learnt something too.