Why doesn't Vibrant Visuals work normally on Intel HD/UHD?

On board GPUs are intended for Microsoft Office, not Minecraft

They accelerate the dashboard, they're not for gaming

You're trying to access a high end feature that requires high end hardware on a baseline GPU.

Save your money and you can afford whatever you want

Let me type this again, I already have the option working with some tweaks done, you know what that means? it means it works without "the full direct x 12 feature set", I just want to know why it doesn't work out of the box. And if it the minimum specs are not a "Windows PC running Minecraft on DirectX 12" because you wouldn't have the full dx12 feature set then they should specify what version is compatible, meaning that this is just plain misinformation and they should tell everybody you need a DX12 Ultimate compatible card which is feature set 12_2 and not 12_1 (dx12). Also, try and be a little more respectful with someone else's stuff, iGPUs ARE "REAL GPUs" as you say, unless you were referring to a discrete/dedicated graphics card, after all not everyone can get an RTX or RX card which I believe you DO have since you are insulting iGPUs, it would be very hypocritical if you didn't.

Minimum requirements are a DX12 gpu, Mojang doesn't care if you have a potato that can only be used as a display adapter, as long as it supports DX12 it should run

That in itself doesn't mean it should 100% work. Even the Minecraft Support page says the same.

'Older graphics cards that support DirectX 12 may not work'

the UHD 620 Graphics in your Core i5-8250u is considered pretty old now from circa 2017.

No you aren't understanding what a gpu is

A gpu had trexel shaders and not l gpus are created equal

You don't seem to understand the difference between a graphics processor and an gpu

Yes UHD IS a graphics processor but it doesn't have shaders

Which you NEED for modern games

It's not a setting you to fix it's hardware processor which are co proccessors that have their own paths

That's like saying my 286 can run doom 3 if I rename my proccessor to Pentium 7 and it should run

Hardware requirements dont work the way you think it does

Uhd is not a gaming gpu what insult are you trying to imply

Your hardware doesn't meet the requirements as you been told many times already

No amount of tweaking fixes lack of hardware

Uhd is budget display adapter meant for businesses not gaming

Even Intel's failed larabee apus had more power then uhd if you don't meet the requirements no tweaking will help you that'd not an insult

You just need better hardware

Minimum requirements are a DX12 gpu, Mojang doesn't care if you have a potato that can only be used as a display adapter, as long as it supports DX12 it should run