Thank you for the feedback, but all the information about it you can find in the Change Log here: https://fooxied.itch.io/stepsofdebauchery/devlog/751248/episode-30-change-log
Bonus content is also just additional renders that do not affect the storyline in the game and are available to additional supporters, as in the end, people on Patreon don't support only that month for 10$, but most of them do it month by month. and as I answered you before - you can get your money back at any time and refund the game. Best regards, Fooxied.