What happens to logical replication after running pg_upgrade?

drop replication slot   Dan dropz slot

Manage inactive or lagging replication slots​ Inactive or lagging replication could cause problems in a database, like an ever-increasing disk usage not

Are these orphan replication slots? They are removed when I drop the subscription, but are created again when I create the subscription again  Are these orphan replication slots? They are removed when I drop the subscription, but are created again when I create the subscription again

04_03_24 lottery result DELETE events, it is necessary to configure the replication identity of the tables Postgres offers 4 different types of REPLICA IDENTITY that dictate how Does it drop the subscriber table or just stop sending updates? On master there is replication slot for slave and it shows correct