Customize what tabs/sessions/profiles etc. share

When browsing, I often wish to open a new “view” that would keep private or share with existing “views” any of:
(by order of importance)

  • Online ID.
  • Extensions.
  • Settings.
  • Addresses loaded (aka tabs).
  • Display (tab mingling, own group, own window, own app…)
  • Cache.

Subsets of these are avalable in various browsers through tabs, tab groups, windows, sessions, profiles, containers…
I want to pick at will.
A complement or substitute would be the ability to save/load any of these aspects.

Somewhat related topic: Equivalent of Multi-Account Containers or Temporary Containers Extension (FF)