I will say, at first glance his stats don't look any different to FM23 (but i stand to be corrected!!) - i just remember his acc/pace being at 12 or 13, also his strength. He's an absolute unit. There was an interview with Ben Godfrey who said Branthwaite is also deceptively fast (one of the fastest at the club) - obviously pace not acceleration. He out muscled and out paced Antonio on the weekend against West Ham in a straight race.
At the same time, i think Tarky is underwelming as well - i think the researcher probably has him too quick, but not as strong/aggressive/brave as he should be. He's always the first one in and doesn't shy out of any tackles