Same here:
MacBook Air 13" Late 2013 / tryed on Cataline and Big Sur / version 6.5.2 (726) from AppStore / preferences are the same as postet on image before / problem starts suddenly under Catalina, but i changed nothing. After updating on Big Sur same problem. Every Start Enpass starts with the LockIn Screen. I must stop running it in the foreground. Then i can use it by clicking the Icon in the Menubar.