Change default value of Button to TRUE?

Like @Wiz.Wazeer said, I think you would need to set this with a script in the sheet. Especially if you want it reset every day.

An alternative would be to use a form button which would pass along a Column Value of True from another column in the parent record that contains the form button. The True value would be written to the sheet. Then when the user edits the record, the switch would already be set to true.

The way Glide is designed, you can’t assign an If Then column to a switch. Unfortunately, Glide does not allow for a default value of switches, but maybe that would be a good feature request.