How to ensure pixel 8 pro stops backing up?

Hi all,

I have backups turned off everywhere I can find the ability to do so on my pixel 8 pro, but am regularly (multiple times per week) getting notifications that my Google storage is almost full. Lo and behold, every time I check drive, I suddenly have a backup that I have to delete, again and again. Does anyone have any tips? It's really making me regret getting a Google phone, since I don't need my phone connected to my email.

Thanks in advance! :)