Welcome to the forum! 
Please post your system info as outlined here:
Are you from the future? 
The drivers are available in the AUR (Arch User Repository), no need to install them manually. Always use the package manger to install things, never manually.
First uninstall what you installed manually so there are no untracked / conflicting files on the system.
Install the Linux Headers for your kernel; i.e., linux510-headers for 5.10.
Install 8188fu-dkms-git via Add/Remove Software or via terminal:
pamac build 8188fu-dkms-git
Then reboot and see if it worked for you.