[torgard]

You also cannot log in on Google-owned websites, like YouTube, without signing in in the browser itself.

I haven't figured out a way to do so, at least. You can use guest tabs, but then you lose all of your customizations (extensions, bookmarks, etc.), so I don't consider that a viable option.

ungoogled-chromium removes this, but the current builds fail on my machine for some reason.

[AsyncAwait]

There's a toggle in settings called "Allow Chrome sign in" under "Advanced", only added after massive backslash.