Hi @Luis Pizarro,
Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.
At the moment, Microsoft has not made any public announcements about removing the Remote Desktop app from their website. However, it's possible that they may update its features or browser compatibility requirements for the Remote Desktop web client around that time, so it's important to keep your browser updated for proper access.
If you have any further queries, do let us know.