Safari Tab groups are gone after new mac initialization !!!

Greetings Mexadon,

We'd like to assist you with restoring your iCloud Tabs to your Mac. The following steps may help resolve this issue:

"On your Mac

1. Choose Apple menu  > System Settings. In macOS Monterey or earlier, choose Apple menu  > System Preferences. 
2. Click Apple ID, then click iCloud. 
3. Click to turn on Safari.

If you can't set up or use iCloud Tabs

iCloud Tabs works between devices running iOS 13 or iPadOS 13 or later and macOS Mojave 10.14.4 or later, or between devices running iOS 12 or earlier and macOS Mojave 10.14.3 or earlier. 

• If your iCloud Tabs aren't updating, make sure that you're running the latest iOS or iPadOS on your iPhone, iPad, or iPod touch and the latest macOS on your Mac.
• Check that you signed in to iCloud with the same Apple ID on all of your devices, and that your Apple ID has two-factor authentication turned on."

More details here: Set up and use iCloud Tabs

Cheers.

Hey Mexadon,

Did you also check your iPad settings to be sure Safari is turned on in the iCloud settings there?

Keep tabs and Tab Groups updated across your devices

Go to Settings  > [your name] > iCloud > Show All, then make sure Safari is turned on.

Note: To also see tabs open on your Mac, you must have Safari turned on in iCloud settings on your Mac, be signed in with the same Apple ID, and use two-factor authentication.

The above steps and more can be found here: View your Safari tabs from another Apple device on iPad - Apple Support

Let us know what you find.

Take care!