Currently game is on 0.5 , so all content is there and when i said links I mean idk if other / platforms that also have subscriptions are allowed on here
They are. You can even give away steam keys. Or integrate with kickstarter. What they do not like, if your game page consists soley of a link to elsewhere.
And since itch actually does not offer subscription, there is some confusion about what you get on some game pages. Especially those with version numbers. Some devs have the bad habit of releasing separate subscription versions of their project. While there is a certain logic behind this, it is also not how a early access work in progress project is supposed to be "sold". You are not gonna ask 240 bucks retail price, just because you developed it for 24 months and had a patreon tier with 10 bucks for access. And the devs I am talking about would release 24 projects on itch...