Hence the groups having the ticket name related to the task I am working on. When the task closes I delete that group once I've ensured anything important for future context is documented and then I say goodbye with confidence.

I don't bookmark things for work tasks, I log them in tickets or commit it to readme/code comments/team docs somewhere.

Edit: I should also note that my workflow uses Simple Tab Groups and not much of this new core feature.

Simple tab groups hides all other tabs and you switch groups via a dropdown. I usually only have 10-12 tabs open at once.