I don't understand this point.
The core of this issue is an insecure updating mechanism for desktop apps. You can argue for security sake, users may opt to only use the official Apple app store or the official Microsoft store. In this case instead of having a random startup manage the update process, you have a couple of multibillion dollar companies.
I'm trying to figure out what exactly you want to happen here. Would you essentially make it a legal to distribute software without a permit ? Would distributing certain software require a permit ?