normally the tab label is derived from the buffer name inside it.
for text tabline, you can customize it by defining a custom function
see :
:help setting-tabline
for gui, I guess it depends if you are using gvim/nvim-qt or sthg else.
normally the tab label is derived from the buffer name inside it.
for text tabline, you can customize it by defining a custom function
see :
:help setting-tabline
for gui, I guess it depends if you are using gvim/nvim-qt or sthg else.