Variable: tab-bar-close-tab-select
tab-bar-close-tab-select is a customizable variable defined in
tab-bar.el.gz.
Value
recent
Documentation
Which tab to make current after closing the specified tab.
If left, select the adjacent left tab.
If right, select the adjacent right tab.
If recent, select the most recently visited tab.
This variable was added, or its default value changed, in Emacs 27.1.
Source Code
;; Defined in /usr/src/emacs/lisp/tab-bar.el.gz
(defcustom tab-bar-close-tab-select 'recent
"Which tab to make current after closing the specified tab.
If `left', select the adjacent left tab.
If `right', select the adjacent right tab.
If `recent', select the most recently visited tab."
:type '(choice (const :tag "Select left tab" left)
(const :tag "Select right tab" right)
(const :tag "Select recent tab" recent))
:group 'tab-bar
:version "27.1")