Google recently disabled uBlock Origin and other extensions for Chrome users with no apparent option to restore them. The good news is that you can still make uBlock Origin work. Here is how.
Have you looked into Firefox Multi Account Containers? I use this extension to quickly switch between multiple tab groups, some of which do use SSO while using the same service (e.g. Outlook). Plus, you can easily create new tabs like Ctrl + Shift + (#1-9) to open a container of your choice among other shortcuts. I know it doesn’t meet all your criteria, but each tab group has its own colour and/or icon to make them distinct, while being in the same window
Have you looked into Firefox Multi Account Containers? I use this extension to quickly switch between multiple tab groups, some of which do use SSO while using the same service (e.g. Outlook). Plus, you can easily create new tabs like Ctrl + Shift + (#1-9) to open a container of your choice among other shortcuts. I know it doesn’t meet all your criteria, but each tab group has its own colour and/or icon to make them distinct, while being in the same window