…and choose for yourself what add-ons you wanted to use. Where you could determine for yourself if they presented an acceptable or unacceptable amount of risk as weighed against their usefulness. And do all of it without jumping through more hoops than the entire affair is worth to begin with.
Of course in such a world you would actually own the copy of your operating system you purchased and every browser that wasn’t Chrome wouldn’t constantly try to become more like Chrome. Basically, this world is pure fantasy.