In many case, user will use tabs as bookmarks and select to free tab instead of close it. For example: in my entertainment activity on Plasma6, I have associated firefox profile. Inside this profile, I have games tab group. You can now see, I use tabs as bookmarks in this case? When I need to do things in game, I click on game and tab loads. When I done with some game, I free related tab.
Why do not allow to select free as default action for close of tab?