Typo in groups dropdown on scheduled reminders admin form
This is similar to https://github.com/civicrm/civicrm-core/pull/18154 but it's not as clear that the original intent was correct.
In the form you have the option to limit to groups, and it seems like it was intended to limit to mailing groups but is missing the first parameter so it shows all.
But for these you might want to send to internal groups or admins, and given that it has showed all groups for a while I'd argue to just remove the parameter completely to explicitly show all.