Amazon must face US nationwide class action over third-party sales

> The consumers’ 2021 lawsuit said Amazon violated antitrust law by restricting third-party sellers from offering their products for lower prices elsewhere on rival platforms while they are also for sale on Amazon.

I've noticed that third-party sellers generally get around this by having the same list price on their own site, but basically offering everyone a coupon for 15-30% off. Not just for signing up for e-mails, but spinning a wheel that pops up a discount, items that are on sale 95% of the time, etc.

So while this may very well be anticompetitive of Amazon, at the same time it's generally something savvy sellers and savvy consumers have been able to get around easily for a long time.

I immediately just click the back button when some spin wheel discount thing pops up, I just figured it was temu leaking. Thank you for explaining why they are doing this, tho I still wonder why it has to be gamified and not just, click here for a coupon, is it because the agreement with Amazon precludes them from offering coupons, but neglects to forbid casino games?