New graphene users first day

Hey guys. I have been “graphene curious” for quite a while now and managed to get a ridiculous deal on a new pxel 9 so figured i would give it a go as a secondary device for a while. I have been watching videos for sometime so knew what to expect for the most part in terms of use, and install went well. But i have a few specific questions and i wanted to ask them here as aposed to the graphene community which can seem a little abrasive at times. 1. App stores, i have them in a tier list of sorts, the installed graphene store to begin, accrscent below that, and then obtanium. Does this seem like the consensus? 2. I had watched a video a while back suggsting that f droid wasnt as great as we all thought and i cant remember why, but is this correct? And if so, if obtanium points towards f droid for an app install is that ok? 3. Browsers. Was looking forward to using vanadium, and its nice, but i had forgotten how intrusive adds can be, even on a pwa installed through it so i have put brave on (been my daily for years), and also web libre as i am testing that out also. But i noticed accrescent has ironfox ready to go. Out of the box is this better or do i need to harden it further and add extensions for the same results? Im sure i will have more in time but right now these are the things i would like to get straightened out to streamline my use case. Many thanks