It honestly varies from dev to dev and game to game. I know of a couple games that are updated once every 3-4 weeks and on the opposite end I'm following a few other devs that usually push an update after at least 3-4 months. About a month or so is a happy medium for most that I follow.
Not that you have to abide by those, really all that matters is you work at your own pace and maintain the quality you're happy with for whatever goals (Render count, word count, or whatever point you'd like to leave things at story-wise) you have for updates.
I think what really helps is how communicative you've been with how things are going. There are, unfortunately, a few too many devs that kinda just leave things in the air unless you're following them on every platform they're on.