ALTER TABLE atomicity with sub-commands

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/15/sql-altertable.html
Description:

Hello dear PostgreSQL family,

It is not entirely clear (to me) that ALTER TABLE statements with
comma-separated sub-commands are atomic. Despite of saying "perform X
actions in one operation" in one of the examples, it is not explicitly said
that the operation will be rolled back if one of the sub-commands fails. 

From the examples, we have:

ALTER TABLE distributors
    ALTER COLUMN address TYPE varchar(80),
    ALTER COLUMN name TYPE varchar(100);

Will the `address` column type change rollback if the `ALTER COLUMN name
TYPE varchar(100)` subcommand fails?

Currently reading the docs for version 15.

Many thanks :)