I’ve spent a lot of time in Chabad shuls and I never remember any pressure to become Chabad. The Chabadniks I know want Jews to study Torah and to do mitzvahs but I’m not aware of them exerting much effort to get men to wear streimels and to strap on two pairs of tefillin every morning and take on the other distinctive customs of Chabad.
With many of the Chabad shuls I know, most of the people who go there aren’t Chabad.
