I’m the OP, and I just wanted to mention that our community would still appreciate this feature and would happily change to the frequency to 3-4 days, if it was possible!
In the topic linked earlier @sam suggests that being able to send the digest Monday & Friday would be a great option, though it was out of scope at the time.
I actually think that defining the day would be the best solution for us. We’d use Monday & Thursday, though. Our community is international and some folks have a weekend on Saturday-Sunday, while some have it on Friday-Saturday.