"This morning someone shared a testing mod of GCam 7.5.105 from Urnyx05. Nevertheless, it's one of the first tests from the developer, so it's very unstable and still has plenty of bugs. So, the developer himself recommends not to install it and suggests to use his latest version of GCam 7.3.018. When GCam 7.5 is ready, Urnyx05 will publish it on his XDA thread."

I bought a OnePlus Nord and reviewed it. Some camera comparisons between Stock and GCam are available here:

https://www.celsoazevedo.com/oneplus-nord-review/