When I plug my android phone into my computer the message to allow USB debugging comes up and I hit yes. However my device doesn’t show up in thunar or lf. If I run adb devices it shows up as:
[unixy@unix-MacbookPro ~]$ adb devices
List of devices attached
R58N53YFKWA device
But I can’t find it anywhere else, not in any file manager, not with sudo fdisk -l. Any ideas?
This is not a macOS forum.
PLEASE READ: My first post about this got removed because of some confusion about my machine because my hostname is set as @unix-MacbookPro, however I am actually running Manjaro on a Dell PC, not MacOS, the hostname is just an joke. Anyways onto the post:
When I plug my android phone into my computer the message to allow USB debugging comes up and I hit yes. However my device doesn’t show up in thunar or lf. If I run adb devices it shows up as:
[unixy@unix-MacbookPro ~]$ adb devices
List of devices attached
R58N53YFKWA device
But I can’t find it anywhere else, not in any file manager, not with sudo fdisk -l. Any ideas?
A small misunderstanding seems to have transpired, my hostname is only set to @unix-MacbookPro as a joke but I am actually running Manjaro on a Dell PC, not MacOS
OK - I am sorry - I was too quick there 
I actually own a MacBookPro - therefore I have seen how they create the hostname on init - which lead me to believe you were using a MacBook and forum members cannot be expected to know how to use adb on macOS.
No idea - just what I do (under KDE this functionality is also not working ATM, did not investigate…) as alternative:
I use adb push/pull on the command line.
This is also recommended as more reliable by some gurus on XDA.
Oke that is one way, but why use USB-debug and adb when mtp is also an option if you have installed gvfs-mtp that is and all you want to do is a simple file transfer.
To be able to use USB debugging you need to add yourself to adbusers group
sudo gpasswd -a $USER adbusers