Changes to Privacy Policy with Release of GPT-4o and How to Protect Personal Data?

I have had a paid ChatGPT+ account for a while now. I have noticed new changes to how OpenAI is handling data privacy with the release of GPT-4o but their website contains references to both the new and old process that are making it hard to understand. However, I've had to diddle about with local AI options for a significant chunk of my AI because Open AI has historically not been transparent or trustworthy with private data management.

Initially, there was no control over data privacy protection except to not enter personal data. Everything entered was added to the model (there was an quiet method to email OpenAI to get this changed but not advertised or easy).

Then I could opt-out of data collection by adjusting my account settings but only if I was willing to give up some of the best features (chat history, voice to voice, etc).

Now it seems that I'm able to completely opt-out of private data collection (it does say they will retain for 30 days for security and legal reasons only). This is great news. I'm ready to start really using this tool for highly specific purposes and uploading my data to manipulate. However, given their previous lack of transparency and the websites lack of explicit clear notice about these changes I'm a bit cautious of jumping in with both feet.

Can anybody clarify what the current private data collection and use policy is? Can I really completely opt-out of data collection for model improvement and 3rd party release finally?

(Sorry if my flair is wrong, there isn't really a general discussion or OpenAI itself flair)