The jstests/core/query/query_settings/query_settings_strictness.js test assumes that it's being ran against an environment without any persistent query settings set. The linked failure is due to previously set settings from jstests/core/query/query_settings/query_settings_lost_update.js interfering with the present assertions.
To address this:

• Ensures that jstests/core/query/query_settings/query_settings_strictness.js always runs on a clean state.
• Add tear-down for jstests/core/query/query_settings/query_settings_lost_update.js so it doesn't interfere with other tests.