There is an opinion that two factorial authorization is not as reliable as many people think ...
In any case, it is more secure than just a password. This authorization method is more difficult to crack.
Some exchanges (for example, Bitfinex) support authorization through a special application via Ledger Nano S (Standard FIDO® U2F). This is the most reliable way.
I fully agree with this! It seems reliable. But users of this application are thousands of times smaller than the Google authorization.