For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:monitoringslm:netdata/openSUSE_Tumbleweed/home:monitoringslm:netdata.repo
zypper refresh
zypper install libnetfilter_acct
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:monitoringslm:netdata/15.6/home:monitoringslm:netdata.repo
zypper refresh
zypper install libnetfilter_acct
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:monitoringslm:netdata/15.5/home:monitoringslm:netdata.repo
zypper refresh
zypper install libnetfilter_acct