[Manal]

I want to ask again
Because Microsoft Edge uses Chromium, can privacy be guaranteed like using Firefox?

Neither Firefox nor edge. They can't guarantee privacy as much as Brave can. I know this might sound as promotion, but I'm really impressed with the dozens of trackers being blocked on every Google/Facebook/any other tech giant website.

However, Edge gives you ability to control how you want to share your data. You can find it in your privacy option in the Edge browser.