Originally Posted by dabac

You’re really forcing us to guess here.

Worn dropouts could cause the wheel to sit crooked, or lose alignment from installation to when you start riding.
But if your tire is wobbling when the wheel is spun off the ground, then the dropouts have nothing to do with that.
could be that the tire simply isn’t any better.
Could be that it isn’t seated properly.
could be that the rim is out of true.