Mass editing fields in the List Module only possible in single view
I think it might be related to https://docs.typo3.org/c/typo3/cms-core/master/en-us/Changelog/11.3/Feature-94218-SelectableColumnsPerTableInRecordList.html
The mass editing of fields as described here: https://docs.typo3.org/m/typo3/tutorial-getting-started/master/en-us/ListModule/MassEditing/Index.html changed due to feature 94218. I am working on integrating the changes into "Getting Started" right now.
Once additional columns are chosen there used to appear a Button with which you could edit all fields of the column in mass editing (See linked manual)
Now the edit column button does not appear on enabling the column but only when you click the label of the column. This makes the mass editing functionality even more obscure.
Additionally the labels of the columns have neither a title tag nor an icon that gives any hint on what kind of action will be performed once clicked.
Please see attached screenshots