Have they reworked how vigor functions? Because in TW2 it was borderline nonsensical at times, and also made using any sign other than Quen grossly inferior to sword mashing generally. Even a maxed out intensity, high vigor and sign damage Igni build was mostly inferior if you couldn't kill your enemies outright in the first few seconds. Above Normal that was rarely the case.
Anyway, the default vigor was two bars. Each time you parry or use a sign, it would deplete a specific amount, which would also afftect how much damage you would deal with your sword. Ok, that sounds fine. Yet, two full bars = 100% vigor with no penalty, but if you ADD more vigor bars, you aren't actually gaining additional actions without penalties, because the game would count your total available vigor as a percentage, not using two as the baseline.
That was just stupid and made the sword (and to a lesser extent alchemy) trees the superior option in most cases. And not just slightly. Sure, dumping 1-2 points into Quen could still be considered useful, but there wasn't any valid argument to heavily invest in the Magic tree other than "for flavor".