RAM had be ruled out as I’ve ran several tests and RAM has passed everyone and they are installed properly
Well you didnt use the tools I suggested, not sure how good the tests are that you ran.
Also people have warned you about the PSU, hence me advising you reduce the power, as its possible your PSU cannot handle your components at stock.
XFR is stock on Ryzen, disabling it vastly reduces power load, spikes.
Reducing the power limit for the GPU is quick, easy and safe, very simple to see if it makes things more stable.