collector so it's probably fine to deny it right?
As @de0u explained it's not fine (and you'll find a lot of other threads on this forum where mods and devs very actively advise against changing system app permissions). While it looks reasonable at first to go the absolute minimal route with permissions, there are good reasons those permissions are given in the first place (and not given for every non system app you install later on). The "added security" is instantly crushed by the potential bugs or crashes you might cause, which can open other security holes. All system apps are open source and pretty minimal, so I wouldn't worry about them. And the trouble you set up for yourself and the devs (if you post about the self inflicted bugs here later on) is simply not worth it in my opinion.
The way I see it is this: If you trust the GOS devs by using their system over other AOSP flavors, you should trust the out of the box setup for the system apps. If you don't trust the system app setup, you shouldn't trust the entire system.
Last but not least: I always recommend you take some time to do some basic threat modeling first. The system apps will then be your very last destination for highest level threat models, alongside removing camera hardware (also not recommended). There are most likely more effective things you can do for your personal privacy and security. For me that's definitely the case as long as I'm using an eSIM and banking apps for example.
I Hope this helps you on your journey. I was very much into fiddling with this kind of stuff as well in the beginning and realized I'm fighting the wrong battles. Focus on the actual threats that matter to you and enjoy life in the time you save by ignoring the rest. :)