I don't think the quality of the front page changed all that much in the last month.
I don't know. I don't think I agree. I've been seeing a lot more truly garbage-tier content on the first few pages of r/all lately, from some really weird, never-before-seen, garbage-tier subs. Half of them I don't even know what they're supposed to be about. What the fuck is a Honk Star Rail? Where the fuck did Pop Culture Chat come from? Who the fuck is Peter, and why is he explaining jokes? I used to doomscroll down to page 8 or 9 before I started seeing weird stuff like this, and now it's right there on page 1. In the past, when I started seeing that weird Taylor Swift Simp Cult sub, I knew I'd been on reddit too long. Now they regularly show up, if not on page 1, then high on page 2.
Along with the r/AmITheAsshole scab copy sub, r/AITAH, which somehow managed to make it to the front page in record time after it's creation, even though it has about 9% as many subscribers as the original did.
Hell, some of these posts on page 1 of r/all only have 1500 upvotes. That's insane.