Try to mount it like normal using the tray icon.
The entry for it in your fstab will override the default mount options.
Unfortunately, KDE has a glaring bug in regards to its Disks & Devices widget. It’s supposedly going to be fixed in version 5.23. 
So you might have to log out and log back in for it to start working again.
That’s because it’s “noauto” so it doesn’t try to mount it on bootup, since there’s no guarantee the USB drive will be plugged in 24/7.
You can check if it’s using your options after mounting it,
mount | grep /home/francois/test
EDIT: I left out an important detail: you need to specify the uid and gid (user and group) in the mount options, like so,
UUID=02B7-2119 /home/francois/test exfat uid=francois,gid=francois,rw,noatime,noauto,sync 0 0