This sounds an awful lot like the PS3 OtherOS class-action lawsuit that Sony had to pay out on.

I personally really like StartAllBack. I just want a clean classic Windows experience.

Honestly, I feel like they’ve made side loading easier and easier as times go on. Used to be that you’d just get a pop up that installs weren’t authorized for that app, then you had to dig through the settings to enable it. Nowadays the pop up has a shortcut to the correct settings page and even visually flashes the right toggle for you to make it easier to find.

I’m confused by your definition of fossil fuels.

It’s not a 100% solution, but many head units will have hdmi input, but you might have to accidentally install the head unit in a way that bypasses the parking brake interlock for it to work while driving. Most phones can utilize a USB-C to hdmi adapter for screen mirroring, although touch data won’t be sent to the phone.