How do I opt out of experiments on Stack Exchange?

On theuser preferences page on Stack Exchange, there is a "Show experiments" preference toggle.

This toggle allows users to opt out of experiments that offer an opt-out option.

• Enabled: Users will see experiments.
• Disabled: Users will not see experiments that provide an opt-out.

Please note that some experiments do not offer an opt-out option and these experiments will still be shown even if a user has selected to opt-out of experiments.