I have tested all optifabric versions from 1.13.5 up to 1.14.3, tested an older fabric loaders 0.14.22 and all 1.19.2 optifine versions I2, I1 and H9 on fabric loader 0.15.3.

As for 1.20.1, I only tested fabric loader 0.14.22 and 0.15.3 with optifine I6

Other things I did was to run "forgified fabric" and "sinytra connector" with a forge loader 47.2.0 but as soon as I put optifine I6 it exits with code 1, this was on 1.20.1, so on second thought it might be optifine issue but im not sure.

I tried so many versions of different mods and loaders but none was succesfull in loading optifine on fabric with fabric api in the mods folder, tried a bunch of fabric api from 0.75 to 0.77 on 1.19.2. Other common errors I got was divided by zero error, next error was when after connecting to multiplayer server, it says "saving game" and closes.

It says windows 10 on crash log but its 11 home, version 10.0.22621 Build 22621 with secure boot and tpm disabled (unofficial windows 11 install using rufus 3.18). Virtualization is on.

Error for 1.19.2, optifine I2, fabric loader 0.15.3:
java.lang.RuntimeException: Could not execute entrypoint stage 'client' due to errors, provided by 'fabric-renderer-indigo'!

Crash log 1.19.2, optifine I2, fabric loader 0.15.3:
crash-2024-01-14_00.15.50-client.txt

Mods used for 1.19.2:

Mods used for 1.20.1: