I'm running Windows 10, version 1909

I installed a free app from the Microsoft Store, Aurora Weather, which displays the weather on my desktop, where I have it set to a small window that I always want open. Does anyone know of a program or way to either move the icon for the program to the system tray or hide it on the taskbar while keeping the program's window open?

I've found a number of programs that were described as being able to hide the icon from the taskbar or move it to the system tray, but all of those would hide or minimize the program's window at the same time.