Postgres Count records inserted/ updated - postgresql

Question

I'm trying to keey track of a clients database with which we sync. I need to record records_added (INSERTs) and records_updated (UPDATEs) to our table.
I'm using an UPSERT to handle the sync, and a trigger to update a table keeping track of insert/updates.
The issue is counting records that have are updated. I have 40+ columns to check, do I have to put all these in my check logic? Is there a more elegant way?
Section of code in question:
select
case
when old.uuid = new.uuid
and (
old.another_field != new.another_field,
old.and_another_field != new.and_another_field,
-- many more columns here << This is particularly painful
) then 1
else 0
end into update_count;
Reproducible example:
-- create tables
CREATE TABLE IF NOT EXISTS example (uuid serial primary key, another_field int, and_another_field int);
CREATE TABLE IF NOT EXISTS tracker_table (
records_added integer DEFAULT 0,
records_updated integer DEFAULT 0,
created_at date unique
);
-- create function
CREATE OR REPLACE FUNCTION update_records_inserted () RETURNS TRIGGER AS $body$
DECLARE update_count INT;
DECLARE insert_count INT;
BEGIN
-- ---------------- START OF BLOCK IN QUESTION -----------------
select
case
when old.uuid = new.uuid
and (
old.another_field != new.another_field
-- many more columns here
) then 1
else 0
end into update_count;
-- ------------------ END OF BLOCK IN QUESTION ------------------
-- count INSERTs
select
case
when old.uuid is null
and new.uuid is not null then 1
else 0
end into insert_count;
-- --log the counts
-- raise notice 'update %', update_count;
-- raise notice 'insert %', insert_count;
-- insert or update count to tracker table
insert into
tracker_table(
created_at,
records_added,
records_updated
)
VALUES
(CURRENT_DATE, insert_count, update_count) ON CONFLICT (created_at) DO
UPDATE
SET
records_added = tracker_table.records_added + insert_count,
records_updated = tracker_table.records_updated + update_count;
RETURN NEW;
END;
$body$ LANGUAGE plpgsql;
-- Trigger
DROP TRIGGER IF EXISTS example_trigger ON example;
CREATE TRIGGER example_trigger
AFTER
INSERT
OR
UPDATE
ON example FOR EACH ROW EXECUTE PROCEDURE update_records_inserted ();
-- A query to insert, then update when number of uses > 1
insert into example(whatever) values (2, 3) ON CONFLICT(uuid) DO UPDATE SET another_field=excluded.another_field+1;