I was playing and exploring with my ZorinOS 17.3, and Zorin Connected my Samsung A52. And I thought to see what happens when I choose "ring" in the ZoCon menu. Now my phone keeps yelling at me and I cannot end the ringing.
No, it's not a problem. Zorin Connect is based on KDE Connect, only re-branded and with a few modifications to make it a little more polished. But there's nothing specific about that requires any particular desktop environment.
You can have both installed at the same time if you want to compare them. Just don't have them running at the same time to avoid any issues.