Project in: https://github.com/arcanisgk/atsu

Note: last update at the end of POST

Update #2: I have opted for the script implementation:

chrome.scripting.executeScript({
                target: { tabId: tabId, allFrames: true },
                files: ['src/js/stacks.min.js'],
            });

now the problem is that there is a collision of the original script of the web pages of SE sites; and the file that I am injecting. then all the effects and events created by the original script have stopped working; only those that I initialize in the extension work.