I have no problems, I also don't use a separate /home, /home/opt and it is why I don't use them ... usually problems.
The only thing I have in /opt is firefox & thunderbird nightly's and wine-devel (which installs to that location as default)
Pretty simple basic setup
#Entry for /dev/sda3 :
UUID=83b72a7d-057d-451f-8cbc-27ec1519752d / ext4 defaults,relatime,errors=remount-ro 0 1
#Entry for /dev/sda10 :
UUID=b74a3410-bb7a-45cb-bfb8-21fccb3f9fb5 /disks/disk1part10 ext4 auto,users,rw,exec,relatime 0 0
#Entry for /dev/sda2 :
UUID=4182AD3F3349D507 /disks/disk1part2 ntfs-3g defaults,auto,users,locale=en_US.UTF-8 0 0
#Entry for /dev/sda5 :
UUID=1495E70670ADDCA3 /disks/disk1part5 ntfs-3g defaults,auto,users,locale=en_US.UTF-8 0 0
#Entry for /dev/sda6 :
UUID=b4885921-86d7-4f8e-ae2c-d15bd2db48fe /disks/disk1part6 ext4 auto,users,rw,exec,relatime 0 0
#Entry for /dev/sda7 :
UUID=48877323-265c-4860-8288-a05bde9679f4 /disks/disk1part7 ext4 auto,users,rw,exec,relatime 0 0
#Entry for /dev/sda8 :
UUID=11fed65c-ea36-4f41-898d-7c4e5c232ce7 /disks/disk1part8 ext4 auto,users,rw,exec,relatime 0 0
#Entry for /dev/sda9 :
UUID=c0c45e80-1ee3-462b-8ceb-32712c26db07 /disks/disk1part9 ext4 auto,users,rw,exec,relatime 0 0
#Entry for /dev/sdb1 :
UUID=192108a8-601e-4868-882d-97ad3042b5ee /disks/disk2part1 ext4 auto,users,rw,exec,relatime 0 0
#Entry for /dev/sdc1 :
UUID=0236d812-1bda-4b81-846a-19dff5d663b0 /disks/disk3part1 ext4 auto,users,rw,exec,relatime 0 0
#Entry for /dev/sda1 :
UUID=258e380d-f937-4179-89fa-ecd87628c789 none swap sw 0 0
NAME FSTYPE LABEL UUID MOUNTPOINT
sda
├─sda1 swap 258e380d-f937-4179-89fa-ecd87628c789 [SWAP]
├─sda2 ntfs 4182AD3F3349D507 /disks/disk1part2
├─sda3 ext4 83b72a7d-057d-451f-8cbc-27ec1519752d /
├─sda4
├─sda5 ntfs 1495E70670ADDCA3 /disks/disk1part5
├─sda6 ext4 b4885921-86d7-4f8e-ae2c-d15bd2db48fe /disks/disk1part6
├─sda7 ext4 48877323-265c-4860-8288-a05bde9679f4 /disks/disk1part7
├─sda8 ext4 11fed65c-ea36-4f41-898d-7c4e5c232ce7 /disks/disk1part8
├─sda9 ext4 c0c45e80-1ee3-462b-8ceb-32712c26db07 /disks/disk1part9
└─sda10 ext4 b74a3410-bb7a-45cb-bfb8-21fccb3f9fb5 /disks/disk1part10
sdb
└─sdb1 ext4 192108a8-601e-4868-882d-97ad3042b5ee /disks/disk2part1
sdc
└─sdc1 ext4 0236d812-1bda-4b81-846a-19dff5d663b0 /disks/disk3part1
sr0