Are There Alternatives to Using Depreciated Methods?

I am creating a custom block by extending the 'Block' class and noticed that many of the methods inside this class are depreciated. For example, 'getShape,' 'canSurvive,' 'use,' and many others are depreciated. Many of these methods are very useful for me. However, I am hesitant to use them because of their depreciated status. Are there alternative ways to accomplish what these methods do? Also, if there is documentation on various alternatives that would be greatly helpful.