True. I mentioned this yesterday at [root tip] [How To] VirtualBox - Installation - USB - Shared Folder - #2 by chesya, and it’s now covered in the main post there.
EDIT (3h later) :
Have just noticed “virtualbox-ext-oracle-manjaro” on that page.
Have edited it into my earlier post.
Also learned how to search with pikaur :
$ pikaur -Ssa virtualbox-ext-oracle
Searching... [--]##
aur/virtualbox-ext-oracle 6.1.14-1 [installed] (1305, 5.21)
Oracle VM VirtualBox Extension Pack
aur/virtualbox-ext-oracle-manjaro 6.1.14-1 (4, 2.99)
Oracle VM VirtualBox Extension Pack for Manjaro
aur/virtualbox-ext-oracle-5 5.2.x-1 (8, 0.07)
Oracle VM VirtualBox Extension Pack 5.2.x (stable)
aur/virtualbox-ext-oracle-beta 6.1.0_RC1-1 (1, 0.00)
Oracle VM VirtualBox Extension Pack (Beta)
aur/virtualbox-ext-oracle-5-test-build 5.2.35_135314-1 (0, 0.00)
Oracle VM VirtualBox Extension Pack Test Build 5.2.35_135314
aur/virtualbox-ext-oracle-5.0 5.0.40-1 [outofdate: 2018/12/29] (6, 0.00)
Oracle VM VirtualBox Extension Pack