Chrome's user profiles can take a considerable amount of space.

The below PowerTag optimizes SessionSync to sync only the useful part of a Chrome profile, meaning the part that is needed for roaming, leaving aside caches and unnecessary temporary data. This helps prevent profile bloat.

!UPCS_INCLUDE=AppData/Local/Google/Chrome/User Data/*;AppData/Local/Google/Chrome/User Data/Default/*;AppData/Local/Google/Chrome/User Data/Default/Network/*;AppData/Local/Google/Chrome/User Data/Profile*/*;AppData/Local/Google/Chrome/User Data/Profile*/Network/*

For Chrome profile persistence on Linux, the path is .config/google-chrome/Default, so the PowerTag would be