Failover of the logical replication slot has always been the pain point while using the logical replication in PostgreSQL. This lack of feature undermined the use of logical replication and acted as one of the biggest deterrents. The stake and impact were so high that many organizations had to discard their plans around logical replication, [&]

https://www.percona.com/blog/how-patroni-addresses-the-problem-of-the-logical-replication-slot-failover-in-a-postgresql-cluster/