Interesting, sounds very complicated. I have never heard of such a thing. Generally, an A in a weighted class is a 5 - whether it is IB, AP or at a CC.
UCs won’t give OOS applicants bonus pts for honors courses. The official UC GPA is capped to just 8 semester and includes only a-g courses taken in grades 10 and 11. 4.4 is about as high as you can get in their book.
Use this tool to calculate yours.
https://rogerhub.com/gpa-calculator-uc/
OOS to a UC right now is hard to guess right now. They are under intense political pressure to admit fewer OOS students so, what worked a year or two ago, may not work this year. Irvine and Davis could go either way. The others on your list, probably not. .