A question, if I buy the premium version, do I have full access to the game without needing to be subscribed to platforms, or to unlock certain scenes do I have to be subscribed, despite having purchased the premium version?
If you buy on itch, you get access to exclusive scenes and only have to pay once. The only down side is that you have to wait for public release date, while those with montly subscription on subscribestar or patreon or whatever will have access to the newest update earlier and be included in polls that may determine what gets added in future updates.