Investigating, the presence of Facebook's digital currency has contributed to controlling the value of Bitcoin. Some investors say the social networking plan is encouraging people to buy Bitcoin. This shows optimism for the increasingly widespread application of cryptocurrency in the mainstream financial system.
I really do not think so that the introduction and announcement of Libra has anything to do with the recent rally, if people are excited about a centralized coin why would the rally starts in bitcoin. Main stream financial institutions have stake in bitcoin as they have already invested in the past and the possibility of halving and the expected price rise could attract many huge investors to invest earlier and hence the rally and not because of some centralized coin announcement.
In addition, the company made by Mark Zuckerberg also targets the currency to be used in developing countries where many residents still do not have bank accounts.
If people are not even having bank accounts how will a centralized coin change those situation, you need infrastructure to make those changes and people who does not bother to have an account or never had the opportunity will not risk their money in any other platform. It is easy to say that it will help the developing countries but how they are going to achieve it is the biggest question
.