On the page for the "Spell Sniper" feat here, it lists the prerequisite as "Architect of Ruin Spellcasting", which is...weird. Sounds like something from a third-party source, maybe? I'm reasonably sure it wasn't always like that.

I suspect it's an artifact of adding a third-party feature as a possible prerequisite. It certainly still is choosable without that feature.

But it certainly could be better integrated into the listing.

Oh, yeah, it actually works fine, it just looks weird.

I figured it was something like that, it’s just weird that that’s the only prerequisite showing up on the feat page.