Multiprocessing freeze support unclear

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-08-26.15:13:28.294>
labels = ['library', '3.9', '3.10', '3.11']
title = 'Multiprocessing freeze support unclear'
updated_at = <Date 2021-08-26.15:13:28.294>
user = 'https://github.com/ronaldoussoren'

bugs.python.org fields:

activity = <Date 2021-08-26.15:13:28.294>
actor = 'ronaldoussoren'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-08-26.15:13:28.294>
creator = 'ronaldoussoren'
dependencies = []
files = []
hgrepos = []
issue_num = 45016
keywords = []
message_count = 1.0
messages = ['400354']
nosy_count = 1.0
nosy_names = ['ronaldoussoren']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue45016'
versions = ['Python 3.9', 'Python 3.10', 'Python 3.11']