Firefox has fixed a lot of issues in their Quantum release. It removed a lot of what you called bloat as well. In tests it uses a lot less memory on average compared to Chrome. The privacy settings have been extended even further in recent years. Chrome’s settings come not even close to it. The extension system is still more flexible than Chrome’s. It has some built-in features such as autoplay stop and audio control that Chrome lacks. I also think you’re vastly overstating the incompatibilities on Firefox.
Finally, isn’t it better if there are multiple browser engines instead of just one? This allows for more innovation and has done so in the past too. The past pretty much proves that Firefox has and still can innovate despite your assertion.
I also wonder why you are stating all this in such a polemic and vulgar fashion. “ suckling on Google teats”, “bloated spamware”. None of this is even remotely accurate. But anyhow, what’s the point?