Hi Tapas Adhikary, yes it is git, with a small team of 5 devs. Being doing it for 7 years now.
We don't do formal reviews or PR's, all the code is produced on pairs or overviewed by a senior dev at coding time and commited to trunk.
We are full CI/CD using jenkins, and the simplification of the VCS model (git in our case), with low branching or other tasks, leads to more time coding.
Have yet to test the model at a scale, but it works nicely here.