[suhail]

It won’t. For users, it will simply make it harder to move to anything not owned by Google.

If you can’t move bookmarks, passwords, extensions, history, it requires more effort for the user to switch.

Not too mention, interop to sync on mobile.

[franga2000]

You should be able to move them, just not directly sync them with Google. GDPR etc. took care of that. It's on the third party developers to make importing data as easy as possible.