Does the official installation wipe everything?

Hi all, I have a probably dumb question.

My Macbook pro A1502 early 2015 (i5 2.7 GHz, 8/256) runs smoothly with Monterey, but there are few apps I cannot install because they ask me for the 13.0 version.

I want to install Ventura and I'm reading the official installation guide (Booting OpenCore and macOS | OpenCore Legacy Patcher) and my only doubt is whether this procedure is a clean installation (wipes everything) or not.

In case hox can I save everything from my mac? Is Time Machine enough?

PS: sorry for my English, I'm not native

submitted by /u/Sim_Check
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