Is my screen malfunctioned?
Read this interesting post and follow advice there.
I had trouble connecting my laptop to my TV through HDMI. So I instead cast my screen through Chromecast. No lines on my TV
So this is hardware issue
It looks a bit like a semi transparent, but empty of icons, bottom taskbar.
Have you tried booting from Live USB in "Try Zorin" mode to see if you get the same result.
(Or boot Windows, if you have it)
No. I still see the issue