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As of May 2021 my current fully working MOD install order for BG2 on Windows 10.
This is for BG2 complete edition (the original games), not the Enhanced Edition versions. Simply because I prefer the <uncompressed> art style and original UI and just general feel of things.

Before playing, NVIDIA control panel > Set scaling mode at Aspect Ratio. Perform scaling on GPU and check the <Override the scaling mod set by games and programs>. Doing this gives you original working FULL SCREEN 4:3 aspect ratio of the game and makes things work with 3d acceleration on a 34 inch monitor. Its the ONLY way I could make it work with Fullscreen + 3d acceleration (without having it become a tiny window in the middle of the fullscreen). It looks great.
In the BG2config.exe all performance sliders are at their maximum, 3d acceleration ON, cache size at 2000mg and unlock the resolution to 1024.
If you have major stuttering slowdowns during the games that is 100% dues to low mem sounds. A temporary very easy fix is turning the in game Sounds> Ambient volume slider all the way down. This is done until you install the last BG2 mod, generalized biffing (it <biffs> gigs of mod data into a couple hundred mg) Afterwards everything runs fast and super smooth.

BG2 MODS general install order. Highly recommended mods with a * (always check for their latest versions, some here have not been updated. Item revisions and Spell revisions components needs to be installed at two different times.)

* TobEX 26
* BG2 Fixpack V13
* Ascension 2.015
* 1PPv4.2

Tortured Soul Quest V7
Every Mod and Dog v11
PlanarSphereMod 26e(+fix)
The tower of deception 4.0.3
* Assassinations v16
Back to Brynnlaw v8
The sell swords v8
* Tales of the deep garden v12.6
* Innershade v10.4
* The white queen v6.8
I shall never forget v5.8
Eilistraee song 6.8

Imoen Friendship v3.6
Angelo v8
Xulaye v2.0
Varshoon v6.4
Darian v2.4
* Yvette romance 4.1
* Adrian v5.0
Arath v4.0 !
SolaufeinNPC 1.04
* Kelsey v6

* Banter pack v17
* IEP extended banter v5.7
Viconia friendship v4.5
Mazzy friedship v3.5
Yoshimo friendship 4.5
Yoshimos remorse V2
Jans Extended quest1.5
Korgan friendship v1.6
Valygar friendship v1.4
Sarevok friendship v2.6
* NPC flirt pack v1.07
* Romantic encounters v15
Haerdalis friendship v1.2
Cerned friendship v1.3
Minsc friendship v1.2
Fade v5.6

Lucy the wyvern v5.0
Logre et le gnome une histoire de bleu V2
* Almaterias restoration project v8.4

* Revised battles v6.3
* Unfinished business v28
* Dingos quest pack v3.5
Alternatives v15
* The wheels of prophecy v8.3 (change folder name! To: /wheels.tp2/)
* Crossed banter pack v19
Throne of Bhaal Revisited Beta4 bwp fix

RTT Item pack v1.2
The unusual oddities shop v5.0
Cliffkey v7
Food and Herbal mod v1.03
Jans Alchemy v8.1

* Item Revisions V4b10 + revised (1) 1.3.4 <main component> only.
IWDification VBeta 6
* Spell revisions + revised (1) 1.3.201 all components except <update NPCs spellbook>

NPC kitpackV5
Prestige Kit Pack V3

Animal Companion v1.6
* Song and silence v10
* Sword and fist v9
* Rogue rebalancing (1) v4.92
Daulmakans Item PackV1.8

* Spell revisions (2) V4 Beta18 1.3.201 <update NPC spellbook> component.

Infinity Animation Beta5 [complicated install sequence, need to download all wanted animation files]

* Item revisions (2) v4 beta10 1.3.4 All other components.
Unique artifacts v7.2

* The tweaks anthology V9
Infinity Sounds V1.3
* Sword coast stratagems v33.7
* Atweaks v4.53

* Paintbgee
* BG2improvedGUI 3.13
Infinity Sounds 1.3

Widescreen mod

* Generalized biffing 2.5
Post edited June 06, 2021 by mr_daruman