a job you get payed if you work these devs are getting payed rather they work or not devs go sometimes 6 months to a year without a single update
You do understand that renders of high quality, to the degree of Oceans anyways, take hours to finish right? These aren't 1 model assets with nothing in the background and SNES levels of lighting. That also doesn't include script writing, animations, coding and bug testing. Then you get in to having to buy bigger and better rigs to cut down on render times or hiring other people to work on the game as well which, surprise, costs money since you're now paying a staff.
So yeah, a typical update cycle for a AVN/VN like this is 6-8 months, or sometimes longer if something happens. It is what it is unless you're going to have 6 rigs rendering at the same time but that opens a whole new host of issues/costs.
I can concede that some devs take a long time for little to show for it after a 6 month update cycle. But then again, they most likely don't do it full time nor to the same quality.
Ummm actually people can become a patreon and get the game there,and then cancel the subscription.
True. But some people are super picky about having games on their steam account. I was like that at one point. A game was cheaper on EGS, but I wanted all my stuff on my steam account so I would buy it there instead.