Definitely a shift towards our base instincts.
Several subs started showing up in r/popular that never did before or as suggested subs.
All along the lines of r/truerateme, r/facerating, r/rateme, r/amiugly, r/OUTFITS, etc. Never recall seeing these before the mod protests but suddenly see them all the time. All very similar in concept: attractive women posting pictures "asking for feedback".
Similar to when you first sign up for TikTok or IG before you start to follow people, the content is mildly sexual in nature.
Several decidedly more right wing subs are being "suggested" to me. One that sticks out is r/canada_sub but there have been others that have a decidedly right lean. (I'm not Canadian)
Several subs that used to show up in r/popular before no longer do or the do so with reduced frequency. r/news, r/worldnews, r/politics. In fact, when the Trump indictment was announced, it was nowhere to be seen on r/popular for several hours while it was the top topic on Lemmy and Mastodon.
I'm not keeping stats on this; just seat of the pants I've noticed a subtle shift in the content.