TileEntity

If forge works with the regular Launcher, make a test with adding mods one by one or in groups

Make a test with another Launcher like MultiMC or AT Launcher

Add the crash-report or latest.log (logs-folder) with sites like https://paste.ee/ and paste the link to it here

If 1.20.1 vanilla works before, it should be there Nvidia Control Panel - Manage 3D Settings - Program Settings - Recently Used In this list there should be something with Java TM or similar - add these and set the High Performance Mode

Check for the javaw.exe in the Nvidia Control Panel - At "Recently used"

I have no idea - now there are other mods mentioned Maybe use a pre-configured modpack as working base and add some mods

Also remove babyfat and friendsandfoes

It is the file at the bottom: latest

Make sure Java is running via Nvidia GPU: https://windowsreport.com/minecraft-not-using-gpu/ If there is no change, add the crash-report or latest.log with sites like https://paste.ee/

Check for some guides: https://minecraft.fandom.com/wiki/Tutorials/Setting_up_a_Minecraft_Forge_server

Use java 17 instead of Java 22

Also make a test without TheOuterEnd

Make a test with adding it https://www.curseforge.com/minecraft/mc-mods/cupboard

Add the new crash-report

Remove the mod more_jellyfish

Delete the config of Cupboard (config folder) If there is no change, make a test without this mod

tmted refers to Engineers Delight This mod requires IE to work - remove Engineers Delight or add ImmersiveEngineering

If you are using AMD/ATI get the latest drivers from their website

Add the crash-report or latest.log (logs-folder) with sites like https://paste.ee/ and paste the link to it here

Add a screenshot of your logs-folder

Add the latest.log from the logs-folder

Add the mod geckolib or remove lostworlds

Looks like some kind of rendering issue - make a test without Rubidium/Oculus

Maybe there are too many mobs inside a chunk Also, do you have Always Active commandblocks running?

Did you also test it with Forge 40.2.4?