The EU cases aren't likely to inform how Epic's case is going to work out in a US court. The European Commission also just lost a lawsuit against Apple so just because they take an aggressive position doesn't mean it will hold up in court.
The Lexmark case was about whether patents right end once a patented product is sold and doesn't seem to be directly applicable here. But note that Lexmark's technological and contractual "post sale" restrictions preventing the reuse of discount toner cartridges were not considered illegal, even if their patent rights were considered exhausted after the sale.
The Lexmark case was about whether patents right end once a patented product is sold and doesn't seem to be directly applicable here. But note that Lexmark's technological and contractual "post sale" restrictions preventing the reuse of discount toner cartridges were not considered illegal, even if their patent rights were considered exhausted after the sale.