starting to read the review, and this is just an assertion. Almost stopped reading. However started skipping around and I found the recommendations
1.8 g/kg/day
which brings me back to exactly where I’ve been
Another paper:
From the pic you can see if you’ve put on excess weight, the recommendation decreases (because its based on lean body mass).
Which can be accomplished like this:
and daily carb intake
and goes even higher… I vaguely recall 8-12g/kg/day for endurance athletes putting in a lot of hours / volume.