I mean, they are searching for almost full disassociation from android at this point, so I don't see why they would seek that. Pretty sure once they fully port the biggest apps used by chinese netizens (微信，微博，小红书, etc.) people won't care about apks.

With something like the Huawei Mate 60 Pro, you can run sandboxed Play Store apps using their GBox store. They also have their own app store, App Gallery (I think that's the name) which have quite a number of apps already.

There is another Play Store sandbox app store too, I think it works well enough from what I read.