Unable to use CMD + Tab to switch windows

Whenever I open GPT desktop app, the CMD + Tab doesn’t allow me to switch to another application. The GPT window is always up, although the toolbar switches to the next application, say Chrome, but the GPT window is stuck.
Every time, I have to minimize the GPT window in order to access other applications which is super annoying
I am using M1, 2020 Macbook Pro. Not sure if this is an issue on my device or if everyone else facing the same.