Automated backups schedule - which setting is used - Automated backup setup or Automated backups in Scheduled tasks?

[Moodle 3.8.4+ (Build: 20200730)]

A question about two settings for Course Automated backups. As I see it, there are two locations, where you can set the time for Automated backups. One is "Site administration - Courses - Backups - Automated backup setup", and the other is "Site administration - Server - Tasks - Scheduled tasks - Edit task schedule: Automated backups".

Let's say that I set the "Automated backup setup" to run every saturday at 1AM:

And let's also say, that I set the "automated_backup_task" to run, but  at a different time, for example, every monday at 2:30AM:

So, my question is, when will Automated Course backup start - Saturday at 1AM, or monday at 2:30AM?

Similar question about Enable / Disable on both settings. On "Site administration - Courses - Backups - Automated backup setup" the setting is "Active (backup | backup_auto_active)", which can be set to Enabled / Disabled / Manual. On "Site administration - Server - Tasks - Scheduled tasks - Edit task schedule: Automated backups" there is a checkbox, for one to Disable the task.

Which of these two settings has to be enabled for backups to be run on Saturday at 1AM, or monday at 2:30AM?

One more thing - if I click on "Run now", when in Scheduled tasks settings, I dont think my courses are being backed up.

My "Automated backup setup" looks like this:

So, when i hit "Run now", this is what happens:

There are cca. 250 courses on the site. Also, after "Run now", nothing happens in theAutomated backups area:

What am I missing?

Thank you for all the help!

Nejc