"GravityBox has been, for years, one of the most popular Xposed module out there. The Xposed Framework, in case you’re unaware, is one of the most powerful tools used by Android modders. It lets modules modify the code of other apps before, during, or after execution, giving you total control over all the system and user apps on your device. It opens a lot of doors up for new ways to customize your phone, and while it may not be as popular or as widely used as it once was, it is still in use even today"
Note: use v21.3 as it is supported
In magisk manager browse to the magisk-riru-v21.3.zip you downloaded to
Tap install then reboot
Do the same for Edxposed
Note: it is paid app.
You have successfully installed Gravitybox
Edxposed has been updated since this post.