For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:fcrozat:branches:Base:System/openSUSE_Tumbleweed/home:fcrozat:branches:Base:System.repo
zypper refresh
zypper install bluez
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:fcrozat:branches:Base:System/openSUSE_Factory/home:fcrozat:branches:Base:System.repo
zypper refresh
zypper install bluez
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:fcrozat:branches:Base:System/15.4/home:fcrozat:branches:Base:System.repo
zypper refresh
zypper install bluez