No matter their sex, everyone's voice changes throughout their life. But if you're trying to alter your voice to sound more masculine, look up voice deepening exercises on YouTube and do those daily. Also get in the habit of speaking in a deeper voice until it becomes what you automatically do. I also have heard taking DHEA can help this process, but ONLY take it if you are sure it is healthy/safe for you to take.
These things helped me and I have seen some guys get good results by just doing that routinely. Before my voice dropped on T to where I wanted it, I would do vocal exercises, stretch and massage my neck a lot (in the front center where the vocal chords are), and I like to sing so I would sing along to songs with cis male singers and try to match their pitch. I think it made a noticeable difference.
Hope this helps