You can install it directly if you’ve sideloaded a file manager app. You can try with the demo first. There are many tutorials available, and there are different ways to do it.
To install these file manager apps that allow direct installation on the device, you first need to install them APK using a method like SideQuest, which is notably the easiest to use. You can find support on SideQuest Suport or through tutorial and troubleshooting videos.
https://sidequestvr.com/space/142/sidequest-support