Is the calligraphy style of calligraphers in past dynasties related to their personality characteristics?

Of course it matters. Our common European regular script, Yan regular script, Liu regular script and Chinese regular script are the basis for our practice of regular script. Then the ancients were the same, such as Wang Xizhi. You compare his lower case letters with Zhong You. Zhong You was Wang Xizhi's master, so Wang Xizhi must have learned his lower case letters from Zhong You. There is a shadow of Zhong You. If we look at Wang Xianzhi again, he will get The True Story of Wang Xizhi, so his calligraphy status is not as good as his father's. If Wang Xianzhi is Wang Xizhi's father, we can't be sure. Besides, in modern times, Qigong can be regarded as a hundred schools of thought, but his writing obviously has the shadow of Zhao Ti. He must have learned from Zhao in his early years. After his success, he added his own understanding and calligraphy elements to create his own "Qigong style". This is what is commonly called brushwork. If you are used to practicing a person's copybook, you will gradually get used to his brushwork. The most distinctive feature is Yan Ti, whose brushwork is vigorous, round and thick, with strong lines and powerful words. If you have practiced inkstone, as long as you know a little calligraphy, you can see at a glance that it is the brushwork of inkstone.