This option is possible in QuickBooks Online, Paulo Moreno.
In QuickBooks Desktop for Mac, you'll have to use the same internet connection so your users can simultaneously work on the company file at the same time.
On the other hand, QuickBooks Online has this option. As long as your users have an internet connection, anything they made on the file will automatically sync with the other.
I've also added these articles to know the different features that QuickBooks Online and QuickBooks Desktop have:
I'm just here if you have other concerns with the features. I'll help you out!