Alter all tables in schema to set an existing field as an IDENTITY PRIMARY KEY

Is there an easy and robust way to execute these two commands on all tables in a given schema myschema in a PostgreSQL (13) database:

ALTER TABLE myschema.table001 ADD PRIMARY KEY (oid);
ALTER TABLE myschema.table001 ALTER "oid" ADD GENERATED ALWAYS AS IDENTITY;

I'm 100% certain that the oid field is present in theses tables.