I have decades of experience with my preferred editor. That has more value than your whitespace preferences, even if they were incompatible (which isn't true).
I have used Emacs for over half my life. I had to use IntelliJ. Coding style was enforced. Same OS. It was fine. Maybe a bit of a struggle in the beginning. It was actually brilliant. I was soon whizzing away having learnt all the new shortcuts.
I would choose the benefit of uniformity over my personal preferences any day. You don’t know until you’ve seen it.
IntelliJ shortcuts are easy to learn because it hardly has any, in comparison. It's decent at Java boilerplate, but have you started writing plugins for editing other files? Because I can't convince myself that's worth the time investment.