Weird Flickering on Inclines, very prominent on mountains

Video:
https://drive.google.com/file/d/1A9s7fEisPizGC6CjaV2DN74L0X0l7l-i/view?usp=sharing

I am getting these weird lines on mountains with Voxy. It's happening on all the shaders I have, and sometime even without shaders on. I've tried fiddling with the TAA settings, and Voxy LOD quality, and it seems the flickering in less with lower Voxy LOD quality, but it is still there.

I found an older post on reddit of someone having the same issue with vanilla render distances, something about "pixel conflicts" and they solved it by increasing the vanilla mipmapping. I tried that but it didn't work, my assumption being that the vanilla setting doesn't change Voxy LODS.

Please someone help me, this is driving me insane.

Specs:
Intel I7 13700K
NVIDIA RTX 3060
12 gigs of allocated memory
ASUS TUF Gaming 27” 1080P Monitor (VG279QL3A) 180Hz

Mods:
[✔] 3d-armor-0.9.3-mod
[✔] AmbientSounds_FABRIC_v6.3.3_mc1.21.11
[✔] animatica-0.6.1+1.21.5
[✔] appleskin-fabric-mc1.21.11-3.0.7
[✔] architectury-19.0.1-fabric
[✔] authme-fabric-9.1.0+1.21.11
[✔] BetterF3-17.0.0-Fabric-1.21.11
[✔] BetterGrassify-1.8.3+fabric.1.21.11
[✔] better-mipmaps-0.2-1.21.11
[✔] bettermounthud-1.2.6
[✔] better-ping-display-fabric-1.21.11-1.2.0
[✔] bobby-5.2.11+mc1.21.11
[✔] c2me-fabric-mc1.21.11-0.3.6.0.0
[✔] capes-1.5.10+1.21.11-fabric
[✔] chat_heads-1.2.0-fabric-1.21.11
[✔] Chunky-Fabric-1.4.55
[✔] cloth-config-21.11.153-fabric
[✔] continuity-3.0.1-beta.1+1.21.11
[✔] CrashAssistant-fabric-1.21.5-1.21.11-1.10.28
[✔] CraterLib-Fabric-1.21.11-3.0.1
[✔] CreativeCore_FABRIC_v2.14.9_mc1.21.11
[✔] cwb-fabric-3.0.0-build.14+mc1.21.11
[✔] dark-loading-screen-1.6.17
[✔] drippyloadingscreen_fabric_3.1.1_MC_1.21.11
[✔] dynamic-fps-3.11.3+minecraft-1.21.11-fabric
[✔] e4mc_minecraft-fabric-5.5.4
[✔] entity_model_features_1.21.11-fabric-3.0.10
[✔] entity_texture_features_1.21.11-fabric-7.0.8
[✔] entityculling-fabric-1.9.5-mc1.21.11
[✔] Essential_1-3-10-4_fabric_1-21-11
[✔] EuphoriaPatcher-1.7.8-r5.6.1-fabric
[✔] explosive-enhancement-1.4.1-1.21.11
[✔] fabric-api-0.141.1+1.21.11
[✔] fabric-language-kotlin-1.13.8+kotlin.2.3.0
[✔] fabrishot-1.16.4
[✔] fallingleaves-2.0.3+1.21.11
[✔] fancymenu_fabric_3.8.3_MC_1.21.11
[✔] fast-ip-ping-v1.0.8-mc1.21.11-fabric
[✔] ferritecore-8.0.3-fabric
[✔] ForgeConfigAPIPort-v21.11.1-mc1.21.11-Fabric
[✔] fzzy_config-0.7.5+1.21.11
[✔] HorseExpert-v21.11.0-mc1.21.11-Fabric
[✔] ImmediatelyFast-Fabric-1.14.1+1.21.11
[✔] InvMove-0.9.3+1.21.11-Fabric
[✔] iris-fabric-1.10.4+mc1.21.11
[✔] konkrete_fabric_1.9.14_MC_1.21.11
[✔] lambdynamiclights-4.9.1+1.21.11
[✔] language-reload-1.7.5+1.21.11
[✔] litematica-fabric-1.21.11-0.25.4
[✔] litematica-server-paster-v1.3.12-mc1.21.11
[✔] lithium-fabric-0.21.2+mc1.21.11
[✔] lithostitched-1.5.7-fabric-1.21.11
[✔] main-menu-credits-1.2.0
[✔] malilib-fabric-1.21.11-0.27.3
[✔] melody_fabric_1.0.15_MC_1.21.11
[✔] mixintrace-1.1.1+1.17
[✔] modmenu-17.0.0-beta.1
[✔] morechathistory-1.3.1
[✔] moreculling-fabric-1.21.11-1.6.1
[✔] MouseTweaks-fabric-mc1.21.11-2.30
[✔] mru-1.0.26+edge+1.21.11-fabric
[✔] NoChatReports-FABRIC-1.21.11-v2.18.0
[✔] noisium-fabric-2.8.3+mc1.21.11
[✔] notenoughanimations-fabric-1.11.1-mc1.21.11
[✔] optigui-2.3.0-beta.9+1.21.9
[✔] paginatedadvancements-2.8.0+1.21.11
[✔] particlerain-4.0.0-beta.5+1.21.11-fabric
[✔] particular-1.21.11-Fabric-1.3.2
[✔] polytone-1.21.11-5.1.0-fabric
[✔] PresenceFootsteps-1.12.3+1.21.11
[✔] ptp-1.0.23
[✔] puzzle-fabric-2.3.0+1.21.11
[✔] PuzzlesLib-v21.11.6-mc1.21.11-Fabric
[✔] reeses-sodium-options-fabric-2.0.2+mc1.21.11
[✔] reimagined-intro-1.0.0
[✔] RoughlyEnoughItems-21.11.814-fabric
[✔] rrlsFabric-5.1.14+mc.1.21.11
[✔] ScalableLux-0.1.6+fabric.c25518a-all
[✔] ShoulderSurfing-Fabric-1.21.11-4.18.2
[✔] shulkerboxtooltip-fabric-5.2.14+1.21.11
[✔] SimpleRPC-4.0.5
[✔] skinlayers3d-fabric-1.10.1-mc1.21.11
[✔] skyboxify-2.3+1.21.11-fabric
[✔] sodium-extra-fabric-0.8.2+mc1.21.11
[✔] sodium-fabric-0.8.2+mc1.21.11
[✔] sodium-shadowy-path-blocks-fabric-6.0.0
[✔] sound-physics-remastered-fabric-1.21.11-1.5.1
[✔] stendhal-1.4.5-1.21.11
[✔] SubtleEffects-fabric-1.21.11-1.13.2
[✔] visuality-0.7.12+1.21.11
[✔] voicechat-fabric-1.21.11-2.6.11
[✔] voxy-0.2.9-alpha-1.21.11
[✔] waveycapes-fabric-1.8.2-mc1.21.11
[✔] worldedit-mod-7.4.0-rc-01
[✔] xaerominimap-fabric-1.21.11-25.3.5
[✔] xaeroworldmap-fabric-1.21.11-1.40.6
[✔] yet_another_config_lib_v3-3.8.1+1.21.11-fabric
[✔] yosbr-0.1.2
[✔] Zoomify-2.14.6+1.21.11

Start by reviewing the linked video and reproducing the flickering with Voxy 0.2.9-alpha on the listed Minecraft setup. Compare the behavior across Voxy LOD quality, TAA, shaders, and no shaders, then inspect the rendering path responsible for mountain surfaces. Done means the cause is identified and the flickering is fixed or documented with a reproducible limitation.