I am having some odd issues with Ubuntu Budgie 20.04 and exfat file systems.
If I insert an exfat formatted sd card or mount an exfat partition everything works fine. But from a fresh install Gnome Disks (and KDE Partition Manager) cannot format to exfat without exfat-utils installed; once installed they both seem to work fine for formatting partitions.
However installing exfat-utils also installs exfat-fuse... and once installed all exfat partitions and cards are mounted as fuse filesystems ignoring the kernel exfat support (via mount cmd or fstab config). This seems a bit goofy, is there a way to change the order of mount options so that exfat devices use the kernel driver not the exfat-fuse one? Or to install exfat-utils without exfat-fuse?
My solution for now is to install exfat-utils just before I need to format a partition, format the partition, and then uninstall exfat-utils (and with it exfat-fuse) before mounting anything.
** edit **
So this morning to try and benchmark this I installed exfat-utils (and exfat-fuse) but now I just get an error that the partition could not be mounted... so I did "apt remove exfat-fuse" and the drive mounted while leaving exfat-utils installed!
So it seems to install exfat-utils exfat-fuse must be installed too (at least via apt), but exfat-fuse can be uninstalled and exfat-utils still work.