What do you think about these sentences? I come across such sentences off and on.
1) Do you know how much more time Phil spends at home lately?
2) But lately I am seeing fewer of them.
Is it an informal way of speaking?
They are both informal ways of speaking. The first example is very common. The second is also common, but I would always express it as "...but lately I have been seeing fewer of them."
I'm not a teacher of English, but I have spoken it for (almost) all of my life....