Connecting to social media accounts?

Meta
1

Is it still possible to connect to:

Facebook and X accounts? Is it good to connect the accounts? I just tried to connect in the account settings, but it did not work.

2

I did not change my phone number. Why am I getting this warning?

RhinoAccounts
RhinoAccounts1680×1050 80.3 KB

3

There were recent changes made this area to increase security.