Can not sync open tabs with mobile phone

I have setup the sync between my notebook (Lenovo Carbon X1; Windows) and my mobile phone (Pixel 7; Android). The bookmarks are correctly synced but none of the open tabs and I have set it to “sync all” on my notebook and mobile phone. That means that I do not see my open tabs on my notebook on my mobile phone as well. I am using the most current Brave version on both devices.