I recommend Chromium Ungoogled if you can't let go of the Chromium ecosystem for some reason. It's an open source fork of Chromium and puts pretty much all the power in the users' hands, so much so that to get certain features to even work you have to configure it. It is also fully compatible with the Chrome app store, if you want it to be.

https://github.com/ungoogled-software/ungoogled-chromium/releases

The me from 6months back would be onboard with this idea, I don't really recommend firefox anymore. It's a bloated mess run by a very questionable corp. I had to move to PaleMoon, it's the only acceptable browser for me now.
Here are some links for your reading pleasure...
Mozilla - Devil Incarnate
How to choose a browser for your daily use?

I might consider it if they ever implement a modern sidebar like the rest of the others.

I used chrome for less then 1 day ..it always sucked

I don't think so.

Alright. Then please tell me a way to circumvent site compatibility enforcement and I will gladly ditch any chrome-related browsers (that most sites are enforcing to use it nowadays) for the beloved fox on fire.

-EDIT And what do you have to say about this? https://youtu.be/_JNg4Ox2Hvc?t=512 .Its a very recent video and has some interesting takes about firefox.

I would love to and have tried. But I've found too many times that Firefox just doesn't work for some sites. And unfortunately some of those sites are needed for my work.

You getting fked here or there. So don't think it matters that much.

On a Windows machine absolutely. On MacOS, why not trust safari? The battery management for Safari is fantastic.