Feature Suggestion: Option to Sleep or Close All Tabs in a Workspace

[jplumi]

I think it would be great to have an option to either sleep all tabs in a workspace or close them, including the pinned tabs, but without removing them from the list.

This is similar to a feature I used in the Simple Tab Groups extension on Firefox, which has a "Discard group" option.

Currently, if I am done using a workspace for the day and I have several pinned tabs open, I have to click the close button on each one of them. I could select all tabs and click on "Close x tabs", however, it closes and remove the pinned tabs from the list.

Could be implemented as a shortcut or added to the workspace menu, for example: Right-click on workspace icon → Close all tabs.

[xskydro]

Adding to this: closing all tabs currently also removes the essentials.
(Since ending the program doesn't close "unimportant" tabs, they tend to build up quite a lot. - edit: found the setting and that this can be turned off.)
For reference Arc already has this feature, not looking for another arc, since I already like Zen way more by now, but still missing this sadly :/.