In Firefox/IE (and probably others) there's a Minimum Tab Width.
This is useful when you have a lot of open tabs. They shrink only down to the minimum width but not more.
This example is about Brave, but a solution for Chrome/Chromium is welcomed.
Background: I routinely use lots (by Chrome's definition) of tabs in a single window on a small 10" touch tablet. I usually have lots of other non-browser windows open at the same time.
After the tabs reach their minimum size, no mechanism besides Ctrl+Tab exists to reach the hidden tabs on the right-hand side.
In Brave address bar, enter :
Tab Scrolling among the available flags and enable it : you can choose from several options (tabs shrink to pinned tab width, tabs shrink to a medium width, tabs shrink to a large width, tabs do not shrink). Then you just have to restart your browser to see the change take effect.
I will not be surprised if this procedure can be reproduced in all chrome type browsers.
External links referenced by this document: