From June 6th, 2021 to May 16th, 2022, 50% user give 5-star rating, 50% user give 1-star rating. for Session Manager chrome extension.
Try to close a window with many tabs and using Chrome's History>Recently Closed to restore them, and there'll be no problems. Try to use this extension and when they're reloaded, all of them fill the memory at once causing the browser to freeze and the system to hang. Something isn't working the way it should.
Great for launching tab groups. I wish it preserved the "pin" state of a tab though.