This is "Vanilla Client+", a Fabric client-side only modpack featuring small mods that make the game aesthetically pleasing to the player, with very small features like the Inventory, (Immersive Inventory) to the bigger ones, like Essential, a built in multiplayer feature. We can also mention Resourcify, a built it texture pack library, where you can get shaders, texture packs, and more.

LIST OF FEATURES/MODS

Vanilla+ Features/Mods:

Better Advancements: Adds a much bigger UI to the Advancements Page so you dont need to scroll that much to find the advancement that you need.
Blur+: Adds a sudden blur to the background when opening an UI (Ex. Chests, Village Trades, etc.)
Chunks Fade-In: Adds a small animation for loading chunks.
Do A Barrel Roll: Makes Elytra flying so satisfying! Make spins, rolls, and tricks!
Eating Animation: Adds eating animations.
Essential Mod: Adds free minecraft multiplayer, bedrock style.
Immersive UI: Adds cool animations when clicking items in the inventory. (Try clicking an Enchanted item!)
Iris Shaders: Adds compatibility with Optifine shaders.
LambDynamicLights: Adds dynamic lightsources to minecraft, try dropping a torch or a lantern, it will still light up!
Litematica: Easy Building mod, you can copy paste builds, or you can use it to build in using a blueprint in-game.
Resourcify: Built-in Texture Pack library, Shader Library, and Map Library!
Visuality: Adds small particles to little stuff, like slimes having little particles and other stuff aswell.

Optimization Features/Mods:

Sodium: The best optimization mod out there
Entity Culling: Very good Optimization mod
Ferrite Core: Resouces PC consumage when playing minecraft.

Dependencies:

Architectury API
CICADA
Cloth Config API
Fabric API
Fabric Language Kotlin
MaliLib
OctoLib

Overall Optimized