extension.js

const {
    Clutter, Pango, St
} = imports.gi;

var _updateMultiline = imports.ui.appDisplay.AppViewItem.prototype._updateMultiline;
var _init = imports.ui.appDisplay.AppViewItem.prototype._init;
var { AppViewItem } = imports.ui.appDisplay;

function init() {
}

function enable() {
    // Patched version of original function from:
	// https://gitlab.gnome.org/GNOME/gnome-shell/-/blob/main/js/ui/appDisplay.js#L1951-1978
	AppViewItem.prototype._updateMultiline = function() {

        const { label } = this.icon;
        const { clutterText } = label;

        clutterText.set({
            line_wrap: true,
            line_wrap_mode: Pango.WrapMode.WORD_CHAR,
            ellipsize: false,
        });
  }
  
  AppViewItem.prototype._init = function(params = {}, isDraggable = true, expandTitleOnHover = true) {
    _init.bind(this)(params, isDraggable, expandTitleOnHover);
    this._updateMultiline();
  }
}

function disable() {
    AppViewItem.prototype._updateMultiline = _updateMultiline;
    AppViewItem.prototype._init = _init;

}