When using the elytra, for some reason, it causes the player to snap back to a certain direction when in first person view.

Mod loader: Forge 47.2.19
OS: Windows 11
MC Version: 1.20.1

Mods installed:
[✔] additional_enchantments-1.20.1-0.3.5-all
[✔] additionaladditions-6.0.1
[✔] AdvancementPlaques-1.20.1-forge-1.4.10
[✔] alexsmobs-1.22.8
[✔] alternategunpowder-1.0.0-1.20.1
[✔] arboria-1.2.2-1.20.1
[✔] architectury-9.2.14-forge
[✔] autohud-6.3.4+1.20.1-forge
[✔] bulletsboats-0.0.6-1.20.1
[✔] CerbonsAPI-Forge-1.20.1-1.1.0
[✔] CerbonsBetterBeacons-Forge-1.20.1-1.1.1
[✔] CGM-Unofficial-1.4.11+Forge+1.20.1
[✔] citadel-2.5.3-1.20.1
[✔] cloth-config-11.1.118-forge
[✔] collective-1.20.1-7.30
[✔] curios-forge-5.6.1+1.20.1
[✔] dungeons-and-taverns-3.0.3
[✔] dynamiccrosshair-7.4.4+1.20-forge
[✔] EasyAnvils-v8.0.1-1.20.1-Forge
[✔] EasyMagic-v8.0.1-1.20.1-Forge
[✔] elytra_physics-forge-2.0
[✔] ElytraBombing-Forge-1.20.1-1.0.0
[✔] embeddium-0.2.18+mc1.20.1
[✔] embeddiumplus-1.20.1-v1.2.3-build
[✔] EnchantingInfuser-v8.0.2-1.20.1-Forge
[✔] entity_model_features_forge_1.20.1-1.2.3
[✔] entity_texture_features_forge_1.20.1-5.2.2
[✔] everycomp-1.20-2.6.35
[✔] experimentalsettingsdisabler-1.20.1-3.0
[✔] ForgeConfigScreens-v8.0.2-1.20.1-Forge
[✔] framework-forge-1.20.1-0.6.26
[✔] geckolib-forge-1.20.1-4.4.2
[✔] hearths-v1.0.0-mc1.20u1.20.1
[✔] hole_filler_mod-1.2.8_mc-1.20.1_forge
[✔] Iceberg-1.20.1-forge-1.1.13
[✔] immersive_weathering-1.20.1-2.0.1-forge
[✔] invtweaks-1.20.1-1.0.0
[✔] jei-1.20.1-forge-15.2.0.27
[✔] L_Enders_Cataclysm-1.90 -1.20.1
[✔] LeavesBeGone-v8.0.0-1.20.1-Forge
[✔] leawind_third_person-v2.0.8-beta.2-mc1.20.1-forge
[✔] mobbattle-1.20.1-2.4.7-forge
[✔] moonlight-1.20-2.11.0-forge
[✔] NonConflictKeys-Forge-1.19.X-1.20-1.0.0
[✔] oculus-mc1.20.1-1.6.13
[✔] paddedelytras-1.20-1.0
[✔] PuzzlesLib-v8.1.14-1.20.1-Forge
[✔] sculkhorde-1.20.1-0.9.0-Beta3
[✔] smallships-forge-1.20.1-2.0.0-b1.0
[✔] spyglass_of_curios-forge-1.20.1-1.7.2
[✔] stepitup-2.0.1-1.20.1-forge
[✔] textrues_embeddium_options-0.1.3+mc1.20.1
[✔] treeharvester-1.20.1-8.6
[✔] tru.e-ending-v1.1.0b
[✔] UniversalEnchants-v8.0.0-1.20.1-Forge
[✔] vc_gliders-forge-1.1.5
[✔] veinmining-forge-1.3.0+1.20.1
[✔] witherstormmod-1.20.1-4.0.1.1
[✔] YungsApi-1.20-Forge-4.0.3
[✔] YungsBetterEndIsland-1.20-Forge-2.0.5
[✔] YungsBetterMineshafts-1.20-Forge-4.0.4
[✔] YungsMenuTweaks-1.20.1-Forge-1.0.2

By the way, thank you very much for describing the issue so clearly.

It seems has been solved in the latest 2.0.8-beta.3-mc1.20.1

Fixed in 4f9ffb6