We regularly do "cross promo" with other similar 2d porn games we like, and we just did one with FEYADA (which is another dev, not us).
I am not sure about the email you received (we didn't send any), I assume it's just itch.io notification for this post? https://teamdeaddeer.itch.io/priceforfreedom/devlog/692914/knightly-passions-a-f...