Green and blue stripes - error?

Try is to switch off the GPU support from the Lightroom preferences and check if that helps to fix the issue.

Go to Lightroom > Preferences > Performance tab > Uncheck "Use Graphics Processor" > Restart Lightroom.

https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html

If this doesn't help we need more informations about your environment as @dj_paige wrote. 

Please provide also a copy of your 'System Info'. This can be get from the LrC Help > System Info menu item. There's a copy button in the System Info dialog. Press this button and paste the info into your next forum post.

Many reports about this happening when you have an AMD GPU. What GPU (make and model) are you using?

Please see this thread for suggestions: https://community.adobe.com/t5/lightroom-classic-discussions/gpu-problems-on-lightroom-with-the-new-macos-sonoma-14/m-p/14468355

There are other threads dealing with this problem as well. I suggest you search for them.