hey, light power user here - for a while I was using tabXpert browser extension for this, but they have recently changed to paid-only and I havent had a chance to check out their competition but might end up just buying it anyway

it groups sessions, not just tabs, so i can (for example) have all my banking websites together as a session that i can open and close as a window of tabs. the convenience is it organizes the sessions as named things that i can manage in a UI. transfer tabs from one session to another, close tabs, check tabs that have been closed in that session, etc.

if you know of any tools like this or an easy way to manage it independently without a 3rd party browser extension, I would be interested. Sounds like maybe you are doing something similar but at the desktop level, creating a new desktop to pick up and put down? are they savable and transferable between devices? I like to close everything down at night to run some games with friends, and am going to be building a new comp soon and for various reasons starting fresh with software and importing things as i need them rather than flashing my current setup forward to the new hardware