No. Tab groups are great, they allow you to bundle context but persist it front and center. On a given day I might be working on five different things, I contex

No. Tab groups are great, they allow you to bundle context but persist it front and center. On a given day I might be working on five different things, I context switch between tab groups, make some progress within a group, and move along. Bookmarks absolutely do not solve this issue. Bookmarks are not ephemeral, and take considerably more time to organize than simply using tabs naturally.