Been a while since I’ve looked into it, but looks like now it might be a bit less, at .8/lb: https://mennohenselmans.com/the-myth-of-1glb-optimal-protein-intake-for-bodybuilders/

It does seem to indicate you can likely get away with less than that, but I think a gram per kilo would be a bit under optimal.

Also if you don’t already have kidney issues there’s not really anything to worry about with consuming extra protein, other than that it gets expensive. Same myth that people used to discuss with creatine consumption.