Halevi, Square, Avrah, et al.
“This idea, that the creation is re-created at every instant is not found in Chazal or Rishonim.”
I would go a step further; the very concept of the OP and what is relevant to the question posed, sort of goes AGAINST the ideology of the Rambam.
See Rambam in שמונה פרקים and פ”ה מ”ו אבות how he explains the mishnah of עשרה דברים נבראו בין השמשות and the Midrash of תנאי התנה הקדוש ברוך הוא עם מעשה בראשית על הים שיקרע ועל האש שלא ישרוף חנניא מישאל וכו’ that everything EVEN nissim were all determined at the time of creation, being that naturally there are NO changes in the very nature of creation. And that is the very reason why there had to be a תנאי at the very creation of ‘nature’ על הים שיקרע ועל האש שלא ישרוף.
Although, the Mahral in Derech HaChaim (Avos 5:6) argues strongly against the Rambam’s belief on this matter, he does not go to the complete other side, and say that in essence ‘everything’ is in a constant change etc. And if you carefully read the Mahral’s understanding on the above matter, you will see that the question on Chazaka is not relevant at all.
And in any case, is certainly NOT a tenet in Emuna.
However, we do need to understand and explain properly the Nefesh haChaim and the other ones how this works with the explanation of the Rambam and the Mahral etc. but as far as the Chazaka issue goes it is very consistent with the core belief of the Rambam and others.
I will quote the words of the Mahral and Rambam on the next post