Rav Hamburg from Moreshes Ashkenaz holds that even in Israel one should continue his Minhog to lay Tefillin on Chol haMoed. In practice, some of the Moreshes Ashkenaz Minjnim in Israel do lay Tefillin, whereas others don’t, because on different Pesakim they have received.
Even Rav Scheinberg held, that someone who used to lay Tefillin, should still lay them in Israel, albeit @home in private.