I think the immediate need for this has passed but let's look at some data since we're here and I've been looking at data.
This is that graph Zanna mentioned in her answer. This is suggested edits per week from July 2019 until today:
I'm guessing that I'm looking at a slightly wider window that Zanna did because, while in the last year, there's been a decrease, the average per week is actually closer now to what it was in 2019. I'm not quite sure what was happening midyear in 2020 to cause such a huge increase in suggested edits, particularly from anonymous users at that time but... there you have it.
I do agree with the assessment is that fewer people are reviewing - or at least, that fewer reviews are happening. Based on another query, I can see that y'all did have a period where you were hitting 40 on some days, and that's when this post was written. The immediate impact of this post, though, is that y'all haven't hit 40 since.
The chart above shows the maximum, minimum and average number of reviews in the suggested edit queue over a week. You can see that there were two recent weeks that reached 40 and two others that got very close. When we zoom in, as in the next chart, you can see that the last time y'all hit 40 was on May 24th, but, over the last week, y'all have stayed at almost half the cap, even at the max, with the recent high on June 6th of 25.
I'd also point out that y'all are clearing the queue entirely or nearly at times, which wasn't as common since the big increase in pending reviews in March. So, good job to you all for answering the call, and thanks to Zanna for bringing this to the community's attention.
So, since it seems like y'all have it under control, I think I'm going to leave the setting where it is for now. Let me know if you have any questions. :)