administrative checklist on multisite
All of those settings are set per-site.

If you're more comfortable looking at things at the SQL level, you can check out everything stored in civicrm_setting.  Note the presence of a domain_id field; each domain ID corresponds to one of the sites (see civicrm_domain to map them).

It's pretty safe to use SQL to copy those settings if you need to bulk change them.  There used to be an extension that let you change the settings in bulk; the name escapes me right now, but it doesn't work with modern CiviCRM anyway.