You can see the insides here: Excessive play in x-axis linear module bracket - #9 by sdj544
It’s not the leadscrew at an angle or wobbling, the leadscrew only pushes and pulls. It’s the bearings not maintaining proper tension on the rails, and they have a very narrow spacing with which to resist the applied torque from the platform in-line with the lead screw (the pitch, if you will, not the roll).