Changes the "Publish" button back to "Toot", with "Send" for DMs and "Broadcast" for Public toots (all labels can be changed at the top). Works for glitch-soc only.

toot_revival.user.js

// ==UserScript==
// @name         Toot Button Revival Advanced
// @namespace    http://tampermonkey.net/
// @version      0.3
// @description  here be toots
// @author       mxamber
// @match        https://eldritch.cafe/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    /*
    * remember to change domain name as needed
    */

    // labels to use for buttons, adjust as needed
    const Labels = [
        "Send", // DM
        "<i class='fa fa-lock'></i> Toot", // Followers only
        "Toot", // Unlisted
        "Broadcast" // Public
    ];

    /*
    * function to find the button and change its text if it exists
    */
    function updateButton() {
        let button = document.querySelector("button.button.primary");
        if(!button) { return; }

        /*
        * includes "only" (DM or followers)?
        *    if yes: includes "Mentioned" (DM) or not (followers only)?
        *    if no:  includes "Unlisted" (Unlisted) or not (Public)?
        */
        button.innerHTML = button.title.includes("only") ? (button.title.includes("Mentioned") ? Labels[0] : Labels[1]) : (button.title.includes("Unlisted") ? Labels[2] : Labels[3]);
    }


    /*
    * change the text every time the title of the toot button is changed to reflect updated post privacy
    */
    function observeCallback(mutationList, observer) {
        for (const mutation of mutationList) {
            // first false-ish value cancels if, order optimised for maximum efficiency
            // non-attribute mutations will already drop half of the mutations
            // only filtering for title changes will restrict to very few remaining
            // only then do querySelector; most mutations won't even get to this stage
            // && mutation.target == document.querySelector("button.button.primary")
            if(mutation.type == "attributes" && mutation.attributeName == "title") {
                // don't overwrite the "save changes" edit button
                if(mutation.target.innerHTML != "Save changes") { updateButton(); }
            } else {
                // console.log(`Wrong mutation! ${mutation.type} ${mutation.target.tagName} #${mutation.target.id} .${mutation.target.classList}`);
            }
        }
    }


    /*
    * change the text for the first time as soon as the button is created in the DOM
    */
    function firstCallback(mutationList, firstObserver) {
        if(document.querySelector("button.button.primary")) {
            firstObserver.disconnect();
            updateButton();

            // only now observe the now-existing button for changes as described in callback above
            const observer = new MutationObserver(observeCallback);
            observer.observe(document.querySelector("button.button.primary"), { attributes: true});
        }
    }

    const firstobserver = new MutationObserver(firstCallback);
    firstobserver.observe(document.body, { subtree: true, childList: true });
})();