In Xenoblade Chronicles you have a weak attack that fills your arts, which are your most powerful powers and your source of inflicting status, "elemental" attacks and healing. Once you have used your arts, you have to keep doing more weak attacks in order to refill them.
In Final Fantasy VII Remake you have a weak attack that fills your ATB Bar, which allows you to use your most powerful attacks as well as your magic and the use of healing items. Once you have depleted your ATB Bar, you have to keep doing weak attacks in order to refill it.
Again, I know there are differences, thus why I called it an evolution that allows you for more freedom of action. FF VII Remake lets you roll and block enemy attacks (which also slightly refills your ATB Bar), let's you perform the actual weak attacks by yourself (or you can set them to be automatic like XC), let's you change party members on the fly, you can slow down time while selecting your powers, etc, etc, etc... but my point still stands: they are similar in quite a number of things.
Attacks don't fill the arts. Arts are on a cooldown timer which can be reduced by upgrading the art. Exception is the art in the middle like the Monado which can't be changed. That can be filled will weak attacks and some arts.
My bad, I should have clarified I meant the series in general. In Xenoblade Chronicles 2, every art fills by using weak attacks. In Xenoblade Chronicles, the main art for each character (or in Shulk's case all the Monado Arts) are filled by using weak attacks. In Xenoblade Chronicles X arts fill over time, but if you keep using your weak attack, you will fill another meter that will make the art a lot stronger.