I do believe that while Google and Apple are evil gatekeepers they also made it easier for non-tech people to install their own app without always calling their kids or neighbours. That's already a big win.
The way they are doing it is merely the way they are doing it, not the only way it could be done.
So no it was not a win at all and does not justify the method or the various forms of cost & overhead. Not just money but freedom, privacy, agency, discrimination, censoship, algorithm thumb on scale, support, etc.