And since you won't be able to modify web pages, it will also mean the end of customization, either for looks (ie. DarkReader, Stylus), conveniance (ie. Tampermonkey) or accessibility.
Companies like google should really not have so much power. I have stopped using chrome 1 year ago, and i am thinking about switching to a browser that doesn´t use chromium.
I switched to Firefox years ago and don't regret it. There are some sites that don't play nice with FF, but for the most part it works better than chrome.
And it's 100% not firefox's fault that some sites don't work on it. It's the fault of google coming up with propietary shit and lazy devs not bothering to test and optimize it for Firefox.
I made the switch a couple of years back from regular Chrome to Librewolf. I have for the most part been very happy, and was actually surprised at how well it worked despite the privacy measures implemented.