Check/Uncheck all supported devices in the playstore with this JavaScript snippet

uncheckAll

// Rather than going one by one and unchecking each and every one, run this JS query from 
//the console on chrome or firefox that shows up after "inspecting the code" and then just 
// check the ones that you want after wards.

switches = document.getElementsByClassName("M0PRCSC-Rc-g M0PRCSC-Rc-h"); 

for(i = 0; i < switches.length; i++) {
    if (switches[i].getAttribute("aria-checked") == "false") {
        switches[i].click()
    }
};