What might cause this weird 'duplication' visual bug?

I've loaded into a world and certain terrain features seem to almost mirror themselves, it goes away as I move closer, is this intended? Using 256 DH distance, 16 vanilla render distance, extreme quality preset Modlist: AmbientSounds Auto HUD BadOptimizations Better Beds BetterF3 Blur+ (Fabric) Bookshelf Chunks Fade In Cloth Config v15 Collective Concentration Concurrent Chunk Management Engine CreativeCore Cristel Lib Dark Loading Screen Debugify Distant Horizons Dynamic Crosshair EnchantmentDescriptions Entity Model Features Entity Texture Features EntityCulling Explosive Enhancement Fabric API Falling Leaves Faster Random FerriteCore Gpu memory leak fix mod Hide Experimental Warning Hold That Chunk ImmediatelyFast Iris Krypton Lithium M.R.U Mod Menu ModernFix More Culling Mouse Tweaks No Chat Reports No Telemetry Noisium Nullscape Placeholder API PrickleMC Raise Sound Limit Simplified Raised ScalableLux ServerCore Sodium Sound Physics Remastered Sounds Terralith Tiny Item Animations Towns and Towers Visuality YetAnotherConfigLib cupboard