Hi Drago, I'm sorry you face issues with the extension. Unfortunately, websites manage to block scrolling using different strategies. I'm afraid there is no general solution.
I cannot test on all websites but no matter what I propose, as the CSS is changed, there's a risk of undesired rendering.

One solution could be to inject the script that enables scrolling manually instead, only when you need it (clicking on a button / with a keyboard shortcut). I don't know when I will have time to work on this.

An approach with automated different behaviors per website could fix the issue but it looks way too huge to me and I don't have the time to develop and maintain this.

Of course, as the extension is open source, feel free to contribute to it if you can. The link should be somewhere on this page.

Let me propose you an alternative if you use this extension to block cookies pop-ups. You can enable uBlockOrigin's cookie annoyances list. I think you'd have a better browsing experience with it than with ForceScroll. This is what I have been doing for Chromium based browsers, and it works like a charm.

Cheers,