Wouldn’t it make sense to add a hint about restore in the “Backing up your system without running restic as root” docs page? With using a restic user, I get user/group restored only with sudo setcap "cap_dac_override+ep cap_chown+ep" <path_to_restic>.
For the records: restic also restores permissions (except a file only readable by root gets read/write), and it restores timestamps - except if you restore a single file, in that case seems to use the current time.
restic 0.9.6 (v0.9.6-160-gf033850a) compiled with go1.13.5 on linux/amd64