I noticed some change because the repository has been updated, but 8.1 is still not available.
=> rpm -i
https://dev.mysql.com/get/mysql80-community-release-sl15-7.noarch.rpm
package mysql80-community-release-sl15-7.noarch is already installed
=> zypper repos |grep mysql.*community
mysql-cluster-8.0-community | MySQL Cluster 8.0 Community
mysql-cluster-8.0-community-debuginfo | MySQL Cluster 8.0 Community - Debuginfo
mysql-cluster-8.0-community-source | MySQL Cluster 8.0 Community - Source
mysql-connectors-community | MySQL Connectors Community
mysql-connectors-community-debuginfo | MySQL Connectors Community - Debuginfo
mysql-connectors-community-source | MySQL Connectors Community - Source
mysql-tools-community | MySQL Tools Community
mysql-tools-community-debuginfo | MySQL Tools Community - Debuginfo
mysql-tools-community-source | MySQL Tools Community - Source
mysql80-community | MySQL 8.0 Community Server
mysql80-community-debuginfo | MySQL 8.0 Community Server - Debuginfo
mysql80-community-source | MySQL 8.0 Community Server - Source