I’ve just finished the install on a SM-G970F/DS without any problem. Just one detail, I found no information on how to lock the bootloader. I try to do it within Download mode, but /e/os failed to start after locking. Hopefully, unlocking is possible and I recovered.
relocking bootloader is not possible on this device as for most supported devices.
for some rare devices, when possible, it is notified in the documentation.