Well, the two does use the same technology to do what they do - LXC containers. This is fairly well known.
I think the first dozen such questions got slightly better answers back in the day when it was relevant.
So let me flip that around:
Surely, by now, it would be common knowledge that Waydroid was a solution if it had been, right?
Naturally non-solutions aren’t front and center, but it doesn’t mean it hasn’t been tried.
Proposing something so obvious, such a long time after it started being a problem, surely should set off some alarms to sanity-check it…