The series x has the same "3d" audio from headphones but let's be real here... If you're really chasing 3d audio, or just good audio then it's time to start building up a surround sound system.
I started like 20 years ago...began cheap because I didn't have a ton of money. Started upgrading from there, first I ditched the small satellites for towers, then the receiver, added speakers etc etc. Now I can't imagine not having Atmos available to me or 7.1 in games. Only downside is sometimes you have to upgrade before you want, like I need to upgrade a 3 year old receiver because it doesn't support hdmi 2.1 which is important because that's the spec for 4k120 with VRR.