Another tip for fediverse admins: a lot of software (including Mastodon, at least v3, not sure about v4) lets you completely turn off trending posts/hashtags/news/recommendations for your users. Our "Explore" page is just 4 tabs of glorious blankness.
Obviously talk to your community before doing this. We were massively in favor of it, so I did it. We've had them turned off for years. It's been nice
In Mastodon v3, and #Hometown, an admin can do this by going to Administration -> Site Settings -> Trends and unchecking the little box next to "Trends". Your server will still track trends but they'll be gated by moderation actions. If you never take those actions... no trends