Dear Syag,
“You can’t pull a “different strokes for different folks” in Judaism when halachah is not being followed.”
I can.
Lakewood Yeshivos eat before tekiyas shofar.
Briskers don’t fast on the regular fast days.
Chasidish men shave their heads.
Stolin davens the whole pisukei dizimrah out loud.
Many people daven Shacharis late in the morning. And Mincha after sundown.
Some light the menorah inside, others light outside.
It is common to dance on Shabbos. Just about everybody dances on Simchas Torah.
There is a widespread minhag to eat inside on Shemini Atzeres.
Sometimes, different Jews do things differently.