I have a Dell Latitude E5550 dual booted with Windows 11 and Zorin. The Dell has two graphics cards - an Intel and an NVIDIA GeForce 840M. Whenever I put the computer is suspend, either manually or through closing the lid, I see a black screen with white text as pictured here. I've searched the forums for a solution but haven't found anything that works yet. I like Zorin but I'm at my wits end with this.
What nvidia driver are you using ?
Looks like driver version 545.29.06
Try 550 or 565 driver, also check in bios if their are any settings available for suspend.