I was struggling with laggy Blender that gave me the (Non Responive) screen of death multiple times an hour, extremely frustrating.
I couldn't figure out the reason for 2 whole days. I gave the file to ChatGPT and it found the issue within 7 minutes (5€ token cost)
- Essentialy a heavy modifier was hidden and switched to invisible deep down in my node tree. I appearently accidentaly copied the modifier to this object. Would've never found it.
GPT-6 Astra's response below: