The raspberry PI has its high points but geezus it has more low points than an American democracy. I have given enough love to this piece of shit and it's made me so pissed off that my keyboards now in piece's .
I'm done with the pie and I'm done with logitech .
I need to sell this before I...
Raspberry pi imager has a few there's also a ton of info on this website.
Here are a few fun ones for ya.
You could go another route by rooting or jail breaking your phone. There are ways to delete the trash on smart phones like in the past I have done withe my Samsung phones with ODIN flashing software.
Basically you remove the current OS and put the rom in your phone that suits your needs.