Tab Groups not syncing on Brave Linux

Browser Support Sync
1

Description of the issue:
Tab Groups not syncing on Brave Linux 1.75.180 system package (same on previous versions)

Steps to Reproduce (add as many as necessary): 1. 2. 3.

  1. Activate Syncing of Tab Groups
  2. Activate “Tab Groups Save and Sync V2” (relaunch Brave if necessary)
  3. Create new Tabgroup with tabs…
  4. check on other device, the tab group is not being synced
  5. create tab group with tab on other device
  6. check on linux, the tab group is not being synced

Reproduces how often:
Always

Brave Version(See the About Brave page in the main menu):
Brave Linux 1.75.180 system package (same on previous versions)

Type of devices currently running on the Sync chain in question:
Desktop PC with Linux Mint 22.1
Desktop PC with Windows 11 24H2 (latest release as of this post)
Macbook Air M1 with MacOS Sequoia 15.1.1

Additional Information:
I can confirm Tab Group Syncing works flawlessly between MacOS and Windows Version. Only Linux Version does not sync tab groups automatically. I need to use System Package Version because in Flatpak (untested) I cannot use some of my extensions.