Minecraft crashes when pc language is set to Turkish.
net.minecraft.class_151: Non [a-z0-9/._-] character in path of location: additionaladditions:gılded_netherıte/sword
Turkish changes all the i's to ı's, which is causing this. I think it happens in .toLowerCase() and .toUpperCase() methods.

Crash log

https://paste.gg/p/anonymous/e198a87dd83442fc85f5b7cc10c48d6b

Workaround

Add -Duser.language=en jvm arg to your Minecraft