A:AnswerMy son primarily used these for playing Fortnite on the switch, both while docked and also undocked. We haven’t been able to get the chat functions to work with Rocket League though, but he doesn’t play that as often so not as big of an issue as the terrible warranty process that Razer has.
A:AnswerNo, the Barracuda X does not support sidetone despite what the Razer support says (they do not seem to know their own products). This is not compatible with Synapse, which has that sidetone feature. Sorry but you may want to look elsewhere. I would recommend the Steelseries Arctis or Nova.